Convert.ToUInt16 Metode

Referensi

Definisi

Ruang nama:: System

Rakitan:: System.Runtime.Extensions.dll

Rakitan:: System.Runtime.dll

Rakitan:: mscorlib.dll

Rakitan:: netstandard.dll

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Mengonversi nilai tertentu menjadi bilangan bulat yang tidak ditandatangani 16-bit.

Overload

ToUInt16(String)	Mengonversi representasi string yang ditentukan dari angka menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(UInt16)	Mengembalikan bilangan bulat tidak bertanda 16-bit yang ditentukan; tidak ada konversi aktual yang dilakukan.
ToUInt16(UInt32)	Mengonversi nilai bilangan bulat yang tidak ditandatangani 32-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(String, Int32)	Mengonversi representasi string dari angka dalam basis tertentu menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(Object, IFormatProvider)	Mengonversi nilai objek yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit, menggunakan informasi pemformatan khusus budaya yang ditentukan.
ToUInt16(String, IFormatProvider)	Mengonversi representasi string angka yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara, menggunakan informasi pemformatan khusus budaya yang ditentukan.
ToUInt16(Single)	Mengonversi nilai dari angka floating-point presisi tunggal yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(UInt64)	Mengonversi nilai bilangan bulat tidak bertanda 64-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(SByte)	Mengonversi nilai bilangan bulat bertanda tangan 8-bit yang ditentukan ke bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(Char)	Mengonversi nilai karakter Unicode yang ditentukan ke bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(Int64)	Mengonversi nilai bilangan bulat bertanda tangan 64-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(Int32)	Mengonversi nilai bilangan bulat bertanda tangan 32-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(Int16)	Mengonversi nilai bilangan bulat bertanda tangan 16-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(Decimal)	Mengonversi nilai bilangan desimal yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(DateTime)	Memanggil metode ini selalu melempar InvalidCastException.
ToUInt16(Byte)	Mengonversi nilai bilangan bulat tidak bertanda 8-bit yang ditentukan ke bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(Boolean)	Mengonversi nilai Boolean yang ditentukan ke bilangan bulat yang tidak ditandatangani 16-bit yang setara.
ToUInt16(Object)	Mengonversi nilai objek yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit.
ToUInt16(Double)	Mengonversi nilai angka floating-point presisi ganda yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

ToUInt16(String)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi representasi string yang ditentukan dari angka menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(System::String ^ value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (string value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (string? value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : string -> uint16

Public Shared Function ToUInt16 (value As String) As UShort

Parameter

value: String

String yang berisi angka yang akan dikonversi.

Mengembalikan

UInt16

Bilangan bulat tidak bertanda 16-bit yang setara dengan angka dalam value, atau 0 (nol) jika value adalah null.

Atribut: CLSCompliantAttribute

Pengecualian

FormatException

value tidak terdiri dari tanda opsional diikuti dengan urutan digit (0 hingga 9).

OverflowException

value mewakili angka yang kurang dari UInt16.MinValue atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mencoba mengonversi setiap elemen dalam array string numerik menjadi bilangan bulat yang tidak ditandatangani 16-bit.

string[] values = { "1603", "1,603", "one", "1.6e03", "1.2e-02",
                    "-1326", "1074122" };
ushort result;

foreach (string value in values)
{
   try {
      result = Convert.ToUInt16(value);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        value.GetType().Name, value,
                        result.GetType().Name, result);
   }
   catch (FormatException) {
      Console.WriteLine("The {0} value {1} is not in a recognizable format.",
                        value.GetType().Name, value);
   }
   catch (OverflowException) {
      Console.WriteLine("{0} is outside the range of the UInt16 type.", value);
   }
}
// The example displays the following output:
//    Converted the String value '1603' to the UInt16 value 1603.
//    The String value 1,603 is not in a recognizable format.
//    The String value one is not in a recognizable format.
//    The String value 1.6e03 is not in a recognizable format.
//    The String value 1.2e-02 is not in a recognizable format.
//    -1326 is outside the range of the UInt16 type.
//    1074122 is outside the range of the UInt16 type.

let values =
    [| "1603"; "1,603"; "one"; "1.6e03"
       "1.2e-02"; "-1326"; "1074122" |]

for value in values do
    try
        let result = Convert.ToUInt16 value
        printfn $"Converted the {value.GetType().Name} value '{value}' to the {result.GetType().Name} value {result}."
    with
    | :? FormatException ->
        printfn $"The {value.GetType().Name} value {value} is not in a recognizable format."
    | :? OverflowException ->
        printfn $"{value} is outside the range of the UInt16 type." 
// The example displays the following output:
//    Converted the String value '1603' to the UInt16 value 1603.
//    The String value 1,603 is not in a recognizable format.
//    The String value one is not in a recognizable format.
//    The String value 1.6e03 is not in a recognizable format.
//    The String value 1.2e-02 is not in a recognizable format.
//    -1326 is outside the range of the UInt16 type.
//    1074122 is outside the range of the UInt16 type.

Dim values() As String = { "1603", "1,603", "one", "1.6e03", "1.2e-02", _
                           "-1326", "1074122" }
Dim result As UShort

For Each value As String In values
   Try
      result = Convert.ToUInt16(value)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        value.GetType().Name, value, _
                        result.GetType().Name, result)
   Catch e As FormatException
      Console.WriteLine("The {0} value {1} is not in a recognizable format.", _
                        value.GetType().Name, value)
   Catch e As OverflowException
      Console.WriteLine("{0} is outside the range of the UInt16 type.", value)
   End Try   
Next
' The example displays the following output:
'    Converted the String value '1603' to the UInt16 value 1603.
'    The String value 1,603 is not in a recognizable format.
'    The String value one is not in a recognizable format.
'    The String value 1.6e03 is not in a recognizable format.
'    The String value 1.2e-02 is not in a recognizable format.
'    -1326 is outside the range of the UInt16 type.
'    1074122 is outside the range of the UInt16 type.

Keterangan

ToUInt16(String) Menggunakan metode ini setara dengan meneruskan value ke UInt16.Parse(String) metode . value ditafsirkan dengan menggunakan konvensi pemformatan dari budaya saat ini.

Jika Anda lebih suka tidak menangani pengecualian jika konversi gagal, Anda dapat memanggil metode sebagai gantinya UInt16.TryParse . Ini mengembalikan Boolean nilai yang menunjukkan apakah konversi berhasil atau gagal.

Berlaku untuk

ToUInt16(UInt16)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengembalikan bilangan bulat tidak bertanda 16-bit yang ditentukan; tidak ada konversi aktual yang dilakukan.

public:
 static System::UInt16 ToUInt16(System::UInt16 value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (ushort value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : uint16 -> uint16

Public Shared Function ToUInt16 (value As UShort) As UShort

Parameter

value: UInt16

Bilangan bulat 16-bit yang tidak ditandatangani untuk dikembalikan.

Mengembalikan

UInt16

value dikembalikan tidak berubah.

Atribut: CLSCompliantAttribute

Berlaku untuk

ToUInt16(UInt32)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai bilangan bulat yang tidak ditandatangani 32-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(System::UInt32 value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (uint value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : uint32 -> uint16

Public Shared Function ToUInt16 (value As UInteger) As UShort

Parameter

value: UInt32

Bilangan bulat tidak bertanda 32-bit untuk dikonversi.

Mengembalikan

UInt16

Bilangan bulat tidak bertanda 16-bit yang setara valuedengan .

Atribut: CLSCompliantAttribute

Pengecualian

OverflowException

value lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mencoba mengonversi setiap elemen dalam array bilangan bulat yang tidak ditandatangani menjadi bilangan bulat 16-bit yang tidak ditandatangani.

uint[] numbers = { UInt32.MinValue, 121, 340, UInt32.MaxValue };
ushort result;

foreach (uint number in numbers)
{
   try {
      result = Convert.ToUInt16(number);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    Converted the UInt32 value '0' to the UInt16 value 0.
//    Converted the UInt32 value '121' to the UInt16 value 121.
//    Converted the UInt32 value '340' to the UInt16 value 340.
//    The UInt32 value 4294967295 is outside the range of the UInt16 type.

let numbers = [| UInt32.MinValue; 121u; 340u; UInt32.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"The {number.GetType().Name} value {number} is outside the range of the UInt16 type."
                        
// The example displays the following output:
//    Converted the UInt32 value '0' to the UInt16 value 0.
//    Converted the UInt32 value '121' to the UInt16 value 121.
//    Converted the UInt32 value '340' to the UInt16 value 340.
//    The UInt32 value 4294967295 is outside the range of the UInt16 type.

Dim numbers() As UInteger = { UInt32.MinValue, 121, 340, UInt32.MaxValue }
Dim result As UShort
For Each number As UInteger In numbers
   Try
      result = Convert.ToUInt16(number)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    Converted the UInt32 value '0' to the UInt16 value 0.
'    Converted the UInt32 value '121' to the UInt16 value 121.
'    Converted the UInt32 value '340' to the UInt16 value 340.
'    The UInt32 value 4294967295 is outside the range of the UInt16 type.

Berlaku untuk

ToUInt16(String, Int32)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi representasi string dari angka dalam basis tertentu menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(System::String ^ value, int fromBase);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (string value, int fromBase);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (string? value, int fromBase);

[<System.CLSCompliant(false)>]
static member ToUInt16 : string * int -> uint16

Public Shared Function ToUInt16 (value As String, fromBase As Integer) As UShort

Parameter

value: String

String yang berisi angka yang akan dikonversi.

fromBase: Int32

Basis angka dalam value, yang harus 2, 8, 10, atau 16.

Mengembalikan

UInt16

Bilangan bulat tidak bertanda 16-bit yang setara dengan angka dalam value, atau 0 (nol) jika value adalah null.

Atribut: CLSCompliantAttribute

Pengecualian

ArgumentException

fromBase bukan 2, 8, 10, atau 16.

-atau-

value, yang mewakili angka tidak bertanda 10 yang tidak ditandatangani, diawali dengan tanda negatif.

ArgumentOutOfRangeException

valueadalah Empty.

FormatException

value berisi karakter yang bukan digit valid dalam basis yang ditentukan oleh fromBase. Pesan pengecualian menunjukkan bahwa tidak ada digit untuk dikonversi jika karakter pertama di value tidak valid; jika tidak, pesan menunjukkan bahwa berisi karakter berikutnya yang value tidak valid.

OverflowException

value, yang mewakili angka tidak bertanda 10 yang tidak ditandatangani, diawali dengan tanda negatif.

-atau-

value mewakili angka yang kurang dari UInt16.MinValue atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mencoba menafsirkan setiap elemen dalam array string numerik sebagai nilai heksadesimal dan mengonversinya menjadi bilangan bulat 16-bit yang tidak ditandatangani.

using System;

public class Example
{
   public static void Main()
   {
      string[] hexStrings = { "8000", "0FFF", "f000", "00A30", "D", "-13",
                              "9AC61", "GAD" };
      foreach (string hexString in hexStrings)
      {
         try {
            ushort number = Convert.ToUInt16(hexString, 16);
            Console.WriteLine("Converted '{0}' to {1:N0}.", hexString, number);
         }
         catch (FormatException) {
            Console.WriteLine("'{0}' is not in the correct format for a hexadecimal number.",
                              hexString);
         }
         catch (OverflowException) {
            Console.WriteLine("'{0}' is outside the range of an Int16.", hexString);
         }
         catch (ArgumentException) {
            Console.WriteLine("'{0}' is invalid in base 16.", hexString);
         }
      }
   }
}
// The example displays the following output:
//    Converted '8000' to 32,768.
//    Converted '0FFF' to 4,095.
//    Converted 'f000' to 61,440.
//    Converted '00A30' to 2,608.
//    Converted 'D' to 13.
//    '-13' is invalid in base 16.
//    '9AC61' is outside the range of an Int16.
//    'GAD' is not in the correct format for a hexadecimal number.

open System

let hexStrings =
    [| "8000"; "0FFF"; "f000"; "00A30"
       "D"; "-13"; "9AC61"; "GAD" |]
for hexString in hexStrings do
    try
        let number = Convert.ToUInt16(hexString, 16)
        printfn $"Converted '{hexString}' to {number:N0}."
    with
    | :? FormatException ->
        printfn $"'{hexString}' is not in the correct format for a hexadecimal number."
    | :? OverflowException ->
        printfn $"'{hexString}' is outside the range of an Int16."
    | :? ArgumentException ->
        printfn $"'{hexString}' is invalid in base 16."
// The example displays the following output:
//    Converted '8000' to 32,768.
//    Converted '0FFF' to 4,095.
//    Converted 'f000' to 61,440.
//    Converted '00A30' to 2,608.
//    Converted 'D' to 13.
//    '-13' is invalid in base 16.
//    '9AC61' is outside the range of an Int16.
//    'GAD' is not in the correct format for a hexadecimal number.

Module Example
   Public Sub Main()
      Dim hexStrings() As String = { "8000", "0FFF", "f000", "00A30", "D", _
                                     "-13", "9AC61", "GAD" }
      For Each hexString As String In hexStrings
         Try
            Dim number As UShort = Convert.ToUInt16(hexString, 16)
            Console.WriteLine("Converted '{0}' to {1:N0}.", hexString, number)
         Catch e As FormatException
            Console.WriteLine("'{0}' is not in the correct format for a hexadecimal number.", _
                              hexString)
         Catch e As OverflowException
            Console.WriteLine("'{0}' is outside the range of an Int16.", hexString)
         Catch e As ArgumentException
            Console.WriteLine("'{0}' is invalid in base 16.", hexString)
         End Try
      Next                                            
   End Sub
End Module
'    ' The example displays the following output:
'    Converted '8000' to 32,768.
'    Converted '0FFF' to 4,095.
'    Converted 'f000' to 61,440.
'    Converted '00A30' to 2,608.
'    Converted 'D' to 13.
'    '-13' is invalid in base 16.
'    '9AC61' is outside the range of an Int16.
'    'GAD' is not in the correct format for a hexadecimal number.

Keterangan

Jika fromBase adalah 16, Anda dapat mengawali angka yang ditentukan oleh value parameter dengan "0x" atau "0X".

UInt16 Karena jenis data hanya mendukung nilai yang tidak ditandatangani, ToUInt16(String, Int32) metode mengasumsikan yang value dinyatakan menggunakan representasi biner yang tidak ditandatangani. Dengan kata lain, semua 16 bit digunakan untuk mewakili nilai numerik, dan bit tanda tidak ada. Akibatnya, dimungkinkan untuk menulis kode di mana nilai bilangan bulat bertanda tangan yang berada di luar rentang UInt16 jenis data dikonversi ke UInt16 nilai tanpa metode melemparkan pengecualian. Contoh berikut mengonversi Int16.MinValue ke representasi string heksadesimalnya, lalu memanggil ToUInt16(String, Int32) metode . Alih-alih melempar pengecualian, metode menampilkan pesan, "0x8000 dikonversi ke 32768."

// Create a hexadecimal value out of range of the UInt16 type.
string value = Convert.ToString(Int16.MinValue, 16);
// Convert it back to a number.
try
{
   UInt16 number = Convert.ToUInt16(value, 16);
   Console.WriteLine("0x{0} converts to {1}.", value, number);
}
catch (OverflowException)
{
   Console.WriteLine("Unable to convert '0x{0}' to an unsigned short integer.",
                     value);
}

// Create a hexadecimal value out of range of the UInt16 type.
let value = Convert.ToString(Int16.MinValue, 16)
// Convert it back to a number.
try
    let number = Convert.ToUInt16(value, 16)
    printfn $"0x{value} converts to {number}."
with :? OverflowException ->
    printfn $"Unable to convert '0x{value}' to an unsigned short integer."

' Create a hexadecimal value out of range of the UInt16 type.
Dim value As String = Convert.ToString(Short.MinValue, 16)
' Convert it back to a number.
Try
   Dim number As UInt16 = Convert.ToUInt16(value, 16)
   Console.WriteLine("0x{0} converts to {1}.", value, number)
Catch e As OverflowException
   Console.WriteLine("Unable to convert '0x{0}' to an unsigned short integer.", _
                     value)
End Try

Saat melakukan operasi biner atau konversi numerik, selalu merupakan tanggung jawab pengembang untuk memverifikasi bahwa metode atau operator menggunakan representasi numerik yang sesuai untuk menafsirkan nilai tertentu. Contoh berikut mengilustrasikan satu teknik untuk memastikan bahwa metode tidak secara tidak tepat menggunakan representasi biner untuk menginterpretasikan nilai yang menggunakan representasi pelengkap dua saat mengonversi string heksadesimal menjadi UInt16 nilai. Contoh menentukan apakah nilai mewakili bilangan bulat yang ditandatangani atau tidak ditandatangani saat mengonversi nilai tersebut ke representasi stringnya. Saat contoh mengonversi nilai menjadi UInt16 nilai, contoh memeriksa apakah nilai aslinya adalah bilangan bulat yang ditandatangani. Jika demikian, dan jika bit urutan tinggi diatur (yang menunjukkan bahwa nilai aslinya negatif), metode akan memberikan pengecualian.

// Create a negative hexadecimal value out of range of the UInt16 type.
short sourceNumber = Int16.MinValue;
bool isSigned = Math.Sign((short)sourceNumber.GetType().GetField("MinValue").GetValue(null)) == -1;
string value = Convert.ToString(sourceNumber, 16);
UInt16 targetNumber;
try
{
   targetNumber = Convert.ToUInt16(value, 16);
   if (isSigned && ((targetNumber & 0x8000) != 0))
      throw new OverflowException();
   else
      Console.WriteLine("0x{0} converts to {1}.", value, targetNumber);
}
catch (OverflowException)
{
   Console.WriteLine("Unable to convert '0x{0}' to an unsigned short integer.", value);
}
// Displays the following to the console:
//    Unable to convert '0x8000' to an unsigned short integer.

// Create a negative hexadecimal value out of range of the UInt16 type.
let sourceNumber = Int16.MinValue
let isSigned = sign (sourceNumber.GetType().GetField("MinValue").GetValue null :?> int16) = -1
let value = Convert.ToString(sourceNumber, 16)
try
    let targetNumber = Convert.ToUInt16(value, 16)
    if isSigned && targetNumber &&& 0x8000us <> 0us then
        raise (OverflowException())
    else
        printfn $"0x{value} converts to {targetNumber}."
with :? OverflowException ->
    printfn $"Unable to convert '0x{value}' to an unsigned short integer."
// Displays the following to the console:
//    Unable to convert '0x8000' to an unsigned short integer.

' Create a negative hexadecimal value out of range of the UInt16 type.
Dim sourceNumber As Short = Short.MinValue
Dim isSigned As Boolean = Math.Sign(sourceNumber.MinValue) = -1
Dim value As String = Convert.ToString(sourceNumber, 16)
Dim targetNumber As UInt16
Try
   targetNumber = Convert.ToUInt16(value, 16)
   If isSigned And ((targetNumber And &H8000) <> 0) Then
      Throw New OverflowException()
   Else 
      Console.WriteLine("0x{0} converts to {1}.", value, targetNumber)
   End If    
Catch e As OverflowException
   Console.WriteLine("Unable to convert '0x{0}' to an unsigned short integer.", _
                     value)
End Try 
' Displays the following to the console:
'    Unable to convert '0x8000' to an unsigned short integer.

Berlaku untuk

ToUInt16(Object, IFormatProvider)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai objek yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit, menggunakan informasi pemformatan khusus budaya yang ditentukan.

public:
 static System::UInt16 ToUInt16(System::Object ^ value, IFormatProvider ^ provider);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (object value, IFormatProvider provider);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (object? value, IFormatProvider? provider);

[<System.CLSCompliant(false)>]
static member ToUInt16 : obj * IFormatProvider -> uint16

Public Shared Function ToUInt16 (value As Object, provider As IFormatProvider) As UShort

Parameter

value: Object

Objek yang mengimplementasikan IConvertible antarmuka.

provider: IFormatProvider

Objek yang memasok informasi pemformatan khusus budaya.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani yang setara valuedengan , atau nol jika value adalah null.

Atribut: CLSCompliantAttribute

Pengecualian

FormatException

value tidak dalam format yang sesuai.

InvalidCastException

value tidak mengimplementasikan IConvertible antarmuka.

-atau-

Konversi tidak didukung.

OverflowException

value mewakili angka yang kurang dari UInt16.MinValue atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mendefinisikan HexString kelas yang mengimplementasikan IConvertible antarmuka dan yang dirancang untuk menahan representasi string dari nilai yang ditandatangani 16-bit dan tidak ditandatangani 16-bit. Kelas ini mencakup Sign properti yang menunjukkan tanda nilai heksadesimalnya.

using System;
using System.Globalization;
using System.Text.RegularExpressions;

public enum SignBit { Negative=-1, Zero=0, Positive=1 };

public struct HexString : IConvertible
{
   private SignBit signBit;
   private string hexString;

   public SignBit Sign
   {
      set { signBit = value; }
      get { return signBit; }
   }

   public string Value
   {
      set {
         if (value.Trim().Length > 4)
            throw new ArgumentException("The string representation of a 160bit integer cannot have more than four characters.");
         else if (! Regex.IsMatch(value, "([0-9,A-F]){1,4}", RegexOptions.IgnoreCase))
            throw new ArgumentException("The hexadecimal representation of a 16-bit integer contains invalid characters.");
         else
            hexString = value;
      }
      get { return hexString; }
   }

   // IConvertible implementations.
   public TypeCode GetTypeCode() {
      return TypeCode.Object;
   }

   public bool ToBoolean(IFormatProvider provider)
   {
      return signBit != SignBit.Zero;
   }

   public byte ToByte(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         throw new OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToInt16(hexString, 16)));
      else
         try {
            return Convert.ToByte(UInt16.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is out of range of the UInt16 type.", Convert.ToUInt16(hexString, 16)), e);
         }
   }

   public char ToChar(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative) {
         throw new OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToInt16(hexString, 16)));
      }

      UInt16 codePoint = UInt16.Parse(this.hexString, NumberStyles.HexNumber);
      return Convert.ToChar(codePoint);
   }

   public DateTime ToDateTime(IFormatProvider provider)
   {
      throw new InvalidCastException("Hexadecimal to DateTime conversion is not supported.");
   }

   public decimal ToDecimal(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
      {
         short hexValue = Int16.Parse(hexString, NumberStyles.HexNumber);
         return Convert.ToDecimal(hexValue);
      }
      else
      {
         ushort hexValue = UInt16.Parse(hexString, NumberStyles.HexNumber);
         return Convert.ToDecimal(hexValue);
      }
   }

   public double ToDouble(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         return Convert.ToDouble(Int16.Parse(hexString, NumberStyles.HexNumber));
      else
         return Convert.ToDouble(UInt16.Parse(hexString, NumberStyles.HexNumber));
   }

   public short ToInt16(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         return Int16.Parse(hexString, NumberStyles.HexNumber);
      else
         try {
            return Convert.ToInt16(UInt16.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is out of range of the Int16 type.",
                                                      Convert.ToUInt16(hexString, 16)), e);
         }
   }

   public int ToInt32(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         return Convert.ToInt32(Int16.Parse(hexString, NumberStyles.HexNumber));
      else
         return Convert.ToInt32(UInt16.Parse(hexString, NumberStyles.HexNumber));
   }

   public long ToInt64(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         return Convert.ToInt64(Int16.Parse(hexString, NumberStyles.HexNumber));
      else
         return Int64.Parse(hexString, NumberStyles.HexNumber);
   }

   public sbyte ToSByte(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         try {
            return Convert.ToSByte(Int16.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is outside the range of the SByte type.",
                                                      Int16.Parse(hexString, NumberStyles.HexNumber), e));
         }
      else
         try {
            return Convert.ToSByte(UInt16.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is outside the range of the SByte type.",
                                                   UInt16.Parse(hexString, NumberStyles.HexNumber)), e);
         }
   }

   public float ToSingle(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         return Convert.ToSingle(Int16.Parse(hexString, NumberStyles.HexNumber));
      else
         return Convert.ToSingle(UInt16.Parse(hexString, NumberStyles.HexNumber));
   }

   public string ToString(IFormatProvider provider)
   {
      return "0x" + this.hexString;
   }

   public object ToType(Type conversionType, IFormatProvider provider)
   {
      switch (Type.GetTypeCode(conversionType))
      {
         case TypeCode.Boolean:
            return this.ToBoolean(null);
         case TypeCode.Byte:
            return this.ToByte(null);
         case TypeCode.Char:
            return this.ToChar(null);
         case TypeCode.DateTime:
            return this.ToDateTime(null);
         case TypeCode.Decimal:
            return this.ToDecimal(null);
         case TypeCode.Double:
            return this.ToDouble(null);
         case TypeCode.Int16:
            return this.ToInt16(null);
         case TypeCode.Int32:
            return this.ToInt32(null);
         case TypeCode.Int64:
            return this.ToInt64(null);
         case TypeCode.Object:
            if (typeof(HexString).Equals(conversionType))
               return this;
            else
               throw new InvalidCastException(String.Format("Conversion to a {0} is not supported.", conversionType.Name));
         case TypeCode.SByte:
            return this.ToSByte(null);
         case TypeCode.Single:
            return this.ToSingle(null);
         case TypeCode.String:
            return this.ToString(null);
         case TypeCode.UInt16:
            return this.ToUInt16(null);
         case TypeCode.UInt32:
            return this.ToUInt32(null);
         case TypeCode.UInt64:
            return this.ToUInt64(null);
         default:
            throw new InvalidCastException(String.Format("Conversion to {0} is not supported.", conversionType.Name));
      }
   }

   public UInt16 ToUInt16(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         throw new OverflowException(String.Format("{0} is outside the range of the UInt16 type.",
                                                   Int16.Parse(hexString, NumberStyles.HexNumber)));
      else
         return UInt16.Parse(hexString, NumberStyles.HexNumber);
   }

   public UInt32 ToUInt32(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         throw new OverflowException(String.Format("{0} is outside the range of the UInt32 type.",
                                                   Int16.Parse(hexString, NumberStyles.HexNumber)));
      else
         return Convert.ToUInt32(hexString, 16);
   }

   public UInt64 ToUInt64(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         throw new OverflowException(String.Format("{0} is outside the range of the UInt64 type.",
                                                   Int64.Parse(hexString, NumberStyles.HexNumber)));
      else
         return Convert.ToUInt64(hexString, 16);
   }
}

open System
open System.Globalization
open System.Text.RegularExpressions

type SignBit =
    | Negative = -1
    | Zero = 0
    | Positive = 1

[<Struct>]
type HexString =
    val mutable private hexString: string

    val mutable Sign: SignBit

    member this.Value
        with get () = this.hexString
        and set (value: string) =
            if value.Trim().Length > 4 then
                invalidArg "value" "The string representation of a 16 bit integer cannot have more than four characters."
            elif Regex.IsMatch(value, "([0-9,A-F]){1,4}", RegexOptions.IgnoreCase) |> not then
                invalidArg "value" "The hexadecimal representation of a 16-bit integer contains invalid characters."
            else
                this.hexString <- value

    interface IConvertible with
        // IConvertible implementations.
        member _.GetTypeCode() =
            TypeCode.Object

        member this.ToBoolean(provider: IFormatProvider) =
            this.Sign <> SignBit.Zero

        member this.ToByte(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Convert.ToInt16(this.hexString, 16)} is out of range of the Byte type.")
            else
                try
                    Convert.ToByte(UInt16.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{Convert.ToUInt16(this.hexString, 16)} is out of range of the UInt16 type.", e) )

        member this.ToChar(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Convert.ToInt16(this.hexString, 16)} is out of range of the Char type.")

            let codePoint = UInt16.Parse(this.hexString, NumberStyles.HexNumber)
            Convert.ToChar codePoint

        member _.ToDateTime(provider: IFormatProvider) =
            raise (InvalidCastException "Hexadecimal to DateTime conversion is not supported.")

        member this.ToDecimal(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                let hexValue = Int16.Parse(this.hexString, NumberStyles.HexNumber)
                Convert.ToDecimal hexValue
            else
                let hexValue = UInt16.Parse(this.hexString, NumberStyles.HexNumber)
                Convert.ToDecimal hexValue

        member this.ToDouble(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                Convert.ToDouble(Int16.Parse(this.hexString, NumberStyles.HexNumber))
            else
                Convert.ToDouble(UInt16.Parse(this.hexString, NumberStyles.HexNumber))

        member this.ToInt16(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                Int16.Parse(this.hexString, NumberStyles.HexNumber)
            else
                try
                    Convert.ToInt16(UInt16.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{Convert.ToUInt16(this.hexString, 16)} is out of range of the Int16 type.", e) )

        member this.ToInt32(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                Convert.ToInt32(Int16.Parse(this.hexString, NumberStyles.HexNumber))
            else
                Convert.ToInt32(UInt16.Parse(this.hexString, NumberStyles.HexNumber))

        member this.ToInt64(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                Convert.ToInt64(Int16.Parse(this.hexString, NumberStyles.HexNumber))
            else
                Int64.Parse(this.hexString, NumberStyles.HexNumber)

        member this.ToSByte(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                try
                    Convert.ToSByte(Int16.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{Int16.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the SByte type.", e))
            else
                try
                    Convert.ToSByte(UInt16.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{UInt16.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the SByte type.", e) )

        member this.ToSingle(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                Convert.ToSingle(Int16.Parse(this.hexString, NumberStyles.HexNumber))
            else
                Convert.ToSingle(UInt16.Parse(this.hexString, NumberStyles.HexNumber))

        member this.ToString(provider: IFormatProvider) =
            "0x" + this.hexString

        member this.ToType(conversionType: Type, provider: IFormatProvider) =
            let this = this :> IConvertible
            match Type.GetTypeCode conversionType with
            | TypeCode.Boolean ->
                this.ToBoolean null
            | TypeCode.Byte ->
                this.ToByte null
            | TypeCode.Char ->
                this.ToChar null
            | TypeCode.DateTime ->
                this.ToDateTime null
            | TypeCode.Decimal->
                this.ToDecimal null
            | TypeCode.Double ->
                this.ToDouble null
            | TypeCode.Int16 ->
                this.ToInt16 null
            | TypeCode.Int32 ->
                this.ToInt32 null
            | TypeCode.Int64 ->
                this.ToInt64 null
            | TypeCode.Object ->
                if typeof<HexString>.Equals conversionType then
                    this
                else
                    raise (InvalidCastException $"Conversion to a {conversionType.Name} is not supported.")
            | TypeCode.SByte ->
                this.ToSByte null
            | TypeCode.Single ->
                this.ToSingle null
            | TypeCode.String ->
                this.ToString null
            | TypeCode.UInt16 ->
                this.ToUInt16 null
            | TypeCode.UInt32 ->
                this.ToUInt32 null
            | TypeCode.UInt64 ->
                this.ToUInt64 null
            | _ ->
                raise (InvalidCastException $"Conversion to {conversionType.Name} is not supported.")

        member this.ToUInt16(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Int16.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt16 type.")
            else
                UInt16.Parse(this.hexString, NumberStyles.HexNumber)

        member this.ToUInt32(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Int16.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt32 type.")
            else
                Convert.ToUInt32(this.hexString, 16)

        member this.ToUInt64(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Int64.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt64 type.")
            else
                Convert.ToUInt64(this.hexString, 16)

Imports System.Globalization
Imports System.Text.RegularExpressions

Public Enum SignBit As Integer
   Positive = 1
   Zero = 0
   Negative = -1
End Enum

Public Structure HexString : Implements IConvertible
   Private signBit As SignBit
   Private hexString As String
   
   Public Property Sign As SignBit
      Set
         signBit = value
      End Set
      Get
         Return signBit
      End Get
   End Property
   
   Public Property Value As String
      Set
         If value.Trim().Length > 4 Then
            Throw New ArgumentException("The string representation of a 16-bit integer cannot have more than four characters.")
         Else If Not Regex.IsMatch(value, "([0-9,A-F]){1,4}", RegexOptions.IgnoreCase) Then
            Throw New ArgumentException("The hexadecimal representation of a 16-bit integer contains invalid characters.")             
         Else
            hexString = value
         End If   
      End Set
      Get
         Return hexString
      End Get
   End Property
   
   ' IConvertible implementations.
   Public Function GetTypeCode() As TypeCode _
                   Implements IConvertible.GetTypeCode
      Return TypeCode.Object
   End Function
   
   Public Function ToBoolean(provider As IFormatProvider) As Boolean _
                   Implements IConvertible.ToBoolean
      Return signBit <> SignBit.Zero             
   End Function 
   
   Public Function ToByte(provider As IFormatProvider) As Byte _
                   Implements IConvertible.ToByte
      If signBit = signBit.Negative Then
         Throw New OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToInt16(hexString, 16))) 
      Else
         Try
            Return Convert.ToByte(Int16.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is out of range of the UInt16 type.", Convert.ToUInt16(hexString, 16)), e)
         End Try   
      End If       
   End Function
   
   Public Function ToChar(provider As IFormatProvider) As Char _
                   Implements IConvertible.ToChar
      If signBit = signBit.Negative Then 
         Throw New OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToInt16(hexString, 16)))
      End If
      
      Dim codePoint As UInt16 = UInt16.Parse(Me.hexString, NumberStyles.HexNumber)
      Return Convert.ToChar(codePoint)
   End Function 
   
   Public Function ToDateTime(provider As IFormatProvider) As Date _
                   Implements IConvertible.ToDateTime
      Throw New InvalidCastException("Hexadecimal to DateTime conversion is not supported.")
   End Function
   
   Public Function ToDecimal(provider As IFormatProvider) As Decimal _
                   Implements IConvertible.ToDecimal
      If signBit = signBit.Negative Then
         Dim hexValue As Short = Int16.Parse(hexString, NumberStyles.HexNumber)
         Return Convert.ToDecimal(hexValue)
      Else
         Dim hexValue As UShort = UInt16.Parse(hexString, NumberStyles.HexNumber)
         Return Convert.ToDecimal(hexValue)
      End If
   End Function
   
   Public Function ToDouble(provider As IFormatProvider) As Double _
                   Implements IConvertible.ToDouble
      If signBit = signBit.Negative Then
         Return Convert.ToDouble(Int16.Parse(hexString, NumberStyles.HexNumber))
      Else
         Return Convert.ToDouble(UInt16.Parse(hexString, NumberStyles.HexNumber))
      End If   
   End Function   
   
   Public Function ToInt16(provider As IFormatProvider) As Int16 _
                   Implements IConvertible.ToInt16
      If signBit = SignBit.Negative Then
         Return Int16.Parse(hexString, NumberStyles.HexNumber)
      Else
         Try
            Return Convert.ToInt16(UInt16.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is out of range of the Int16 type.", Convert.ToUInt16(hexString, 16)), e)
         End Try
      End If   
   End Function
   
   Public Function ToInt32(provider As IFormatProvider) As Int32 _
                   Implements IConvertible.ToInt32
      If signBit = SignBit.Negative Then
         Return Convert.ToInt32(Int16.Parse(hexString, NumberStyles.HexNumber))
      Else
         Return Convert.ToInt32(UInt16.Parse(hexString, NumberStyles.HexNumber))
      End If   
   End Function
   
   Public Function ToInt64(provider As IFormatProvider) As Int64 _
                   Implements IConvertible.ToInt64
      If signBit = signBit.Negative Then
         Return Convert.ToInt64(Int16.Parse(hexString, NumberStyles.HexNumber))
      Else
         Return Int64.Parse(hexString, NumberStyles.HexNumber)
      End If   
   End Function
   
   Public Function ToSByte(provider As IFormatProvider) As SByte _
                   Implements IConvertible.ToSByte
      If signBit = signBit.Negative Then
         Try
            Return Convert.ToSByte(Int16.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is outside the range of the SByte type.", _
                                                      Int16.Parse(hexString, NumberStyles.HexNumber), e))
         End Try
      Else
         Try
            Return Convert.ToSByte(UInt16.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is outside the range of the SByte type.", _
                                                    UInt16.Parse(hexString, NumberStyles.HexNumber)), e)
         End Try   
      End If
   End Function

   Public Function ToSingle(provider As IFormatProvider) As Single _
                   Implements IConvertible.ToSingle
      If signBit = signBit.Negative Then
         Return Convert.ToSingle(Int16.Parse(hexString, NumberStyles.HexNumber))
      Else
         Return Convert.ToSingle(UInt16.Parse(hexString, NumberStyles.HexNumber))
      End If   
   End Function

   Public Overloads Function ToString(provider As IFormatProvider) As String _
                   Implements IConvertible.ToString
      Return "0x" & Me.hexString
   End Function
   
   Public Function ToType(conversionType As Type, provider As IFormatProvider) As Object _
                   Implements IConvertible.ToType
      Select Case Type.GetTypeCode(conversionType)
         Case TypeCode.Boolean 
            Return Me.ToBoolean(Nothing)
         Case TypeCode.Byte
            Return Me.ToByte(Nothing)
         Case TypeCode.Char
            Return Me.ToChar(Nothing)
         Case TypeCode.DateTime
            Return Me.ToDateTime(Nothing)
         Case TypeCode.Decimal
            Return Me.ToDecimal(Nothing)
         Case TypeCode.Double
            Return Me.ToDouble(Nothing)
         Case TypeCode.Int16
            Return Me.ToInt16(Nothing)
         Case TypeCode.Int32
            Return Me.ToInt32(Nothing)
         Case TypeCode.Int64
            Return Me.ToInt64(Nothing)
         Case TypeCode.Object
            If GetType(HexString).Equals(conversionType) Then
               Return Me
            Else
               Throw New InvalidCastException(String.Format("Conversion to a {0} is not supported.", conversionType.Name))
            End If 
         Case TypeCode.SByte
            Return Me.ToSByte(Nothing)
         Case TypeCode.Single
            Return Me.ToSingle(Nothing)
         Case TypeCode.String
            Return Me.ToString(Nothing)
         Case TypeCode.UInt16
            Return Me.ToUInt16(Nothing)
         Case TypeCode.UInt32
            Return Me.ToUInt32(Nothing)
         Case TypeCode.UInt64
            Return Me.ToUInt64(Nothing)   
         Case Else
            Throw New InvalidCastException(String.Format("Conversion to {0} is not supported.", conversionType.Name))   
      End Select
   End Function
   
   Public Function ToUInt16(provider As IFormatProvider) As UInt16 _
                   Implements IConvertible.ToUInt16
      If signBit = signBit.Negative Then
         Throw New OverflowException(String.Format("{0} is outside the range of the UInt16 type.", _
                                                   Int16.Parse(hexString, NumberStyles.HexNumber)))
      Else
         Return Convert.ToUInt16(hexString, 16)
      End If   
   End Function

   Public Function ToUInt32(provider As IFormatProvider) As UInt32 _
                   Implements IConvertible.ToUInt32
      If signBit = signBit.Negative Then
         Throw New OverflowException(String.Format("{0} is outside the range of the UInt32 type.", _
                                                   Int16.Parse(hexString, NumberStyles.HexNumber)))
      Else
         Return Convert.ToUInt32(hexString, 16)
      End If   
   End Function
   
   Public Function ToUInt64(provider As IFormatProvider) As UInt64 _
                   Implements IConvertible.ToUInt64
      If signBit = signBit.Negative Then
         Throw New OverflowException(String.Format("{0} is outside the range of the UInt64 type.", _
                                                   Int16.Parse(hexString, NumberStyles.HexNumber)))
      Else
         Return Convert.ToUInt64(hexString, 16)
      End If   
   End Function
   
End Structure

Contoh berikut menunjukkan bahwa panggilan ke ToUInt16(Object, IFormatProvider) metode yang meneruskan HexString objek sebagai parameter, pada gilirannya IConvertible.ToUInt16 , memanggil implementasi HexString kelas .

public class Example
{
   public static void Main()
   {
      ushort positiveValue = 32000;
      short negativeValue = -1;

      HexString positiveString = new HexString();
      positiveString.Sign = (SignBit) Math.Sign(positiveValue);
      positiveString.Value = positiveValue.ToString("X2");

      HexString negativeString = new HexString();
      negativeString.Sign = (SignBit) Math.Sign(negativeValue);
      negativeString.Value = negativeValue.ToString("X2");

      try {
         Console.WriteLine("0x{0} converts to {1}.", positiveString.Value, Convert.ToUInt16(positiveString));
      }
      catch (OverflowException) {
         Console.WriteLine("{0} is outside the range of the UInt16 type.",
                           Int16.Parse(negativeString.Value, NumberStyles.HexNumber));
      }

      try {
         Console.WriteLine("0x{0} converts to {1}.", negativeString.Value, Convert.ToUInt16(negativeString));
      }
      catch (OverflowException) {
         Console.WriteLine("{0} is outside the range of the UInt16 type.",
                           Int16.Parse(negativeString.Value, NumberStyles.HexNumber));
      }
   }
}
// The example displays the following output:
//       0x7D00 converts to 32000.
//       -1 is outside the range of the UInt16 type.

let positiveValue = 32000us
let negativeValue = -1s

let mutable positiveString = HexString()
positiveString.Sign <- Math.Sign positiveValue |> enum
positiveString.Value <- positiveValue.ToString "X2"

let mutable negativeString = HexString()
negativeString.Sign <- sign negativeValue |> enum
negativeString.Value <- negativeValue.ToString "X2"

try
    printfn $"0x{positiveString.Value} converts to {Convert.ToUInt16 positiveString}."
with :? OverflowException ->
    printfn $"{Int16.Parse(negativeString.Value, NumberStyles.HexNumber)} is outside the range of the UInt16 type."

try
    printfn $"0x{negativeString.Value} converts to {Convert.ToUInt16 negativeString}."
with :? OverflowException ->
    printfn $"{Int16.Parse(negativeString.Value, NumberStyles.HexNumber)} is outside the range of the UInt16 type."
// The example displays the following output:
//       0x7D00 converts to 32000.
//       -1 is outside the range of the UInt16 type.

Module Example
   Public Sub Main()
      Dim positiveValue As UInt16 = 32000
      Dim negativeValue As Int16 = -1
      
      
      Dim positiveString As New HexString()
      positiveString.Sign = CType(Math.Sign(positiveValue), SignBit)
      positiveString.Value = positiveValue.ToString("X4")
      
      Dim negativeString As New HexString()
      negativeString.Sign = CType(Math.Sign(negativeValue), SignBit)
      negativeString.Value = negativeValue.ToString("X4")
      
      Try
         Console.WriteLine("0x{0} converts to {1}.", positiveString.Value, Convert.ToUInt16(positiveString))
      Catch e As OverflowException
         Console.WriteLine("{0} is outside the range of the UInt16 type.", _
                           Int16.Parse(positiveString.Value, NumberStyles.HexNumber))
      End Try

      Try
         Console.WriteLine("0x{0} converts to {1}.", negativeString.Value, Convert.ToUInt16(negativeString))
      Catch e As OverflowException
         Console.WriteLine("{0} is outside the range of the UInt16 type.", _
                           Int16.Parse(negativeString.Value, NumberStyles.HexNumber))
      End Try   
   End Sub
End Module
' The example dosplays the following output:
'       0x7D00 converts to 32000.
'       -1 is outside the range of the UInt16 type.

Keterangan

Nilai yang dikembalikan adalah hasil dari pemanggilan IConvertible.ToUInt16 metode dari jenis yang mendasar dari value.

provider memungkinkan pengguna untuk menentukan informasi konversi khusus budaya tentang konten value. Misalnya, jika value adalah String yang mewakili angka, provider dapat menyediakan informasi khusus budaya tentang notasi yang digunakan untuk mewakili angka tersebut.

Jenis dasar mengabaikan provider; namun, parameter dapat digunakan jika value adalah jenis yang ditentukan pengguna yang mengimplementasikan IConvertible antarmuka.

Berlaku untuk

ToUInt16(String, IFormatProvider)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi representasi string yang ditentukan dari angka menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara, menggunakan informasi pemformatan khusus budaya yang ditentukan.

public:
 static System::UInt16 ToUInt16(System::String ^ value, IFormatProvider ^ provider);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (string value, IFormatProvider provider);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (string? value, IFormatProvider? provider);

[<System.CLSCompliant(false)>]
static member ToUInt16 : string * IFormatProvider -> uint16

Public Shared Function ToUInt16 (value As String, provider As IFormatProvider) As UShort

Parameter

value: String

String yang berisi angka yang akan dikonversi.

provider: IFormatProvider

Objek yang memasok informasi pemformatan khusus budaya.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani yang setara dengan angka dalam value, atau 0 (nol) jika value adalah null.

Atribut: CLSCompliantAttribute

Pengecualian

FormatException

value tidak terdiri dari tanda opsional diikuti dengan urutan digit (0 hingga 9).

OverflowException

value mewakili angka yang kurang dari UInt16.MinValue atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mendefinisikan objek kustom NumberFormatInfo yang mengenali string "pos" sebagai tanda positif dan string "neg" sebagai tanda negatif. Kemudian mencoba untuk mengonversi setiap elemen array string numerik menjadi bilangan bulat menggunakan penyedia ini dan NumberFormatInfo penyedia untuk budaya invarian.

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      // Create a NumberFormatInfo object and set several of its
      // properties that apply to numbers.
      NumberFormatInfo provider = new NumberFormatInfo();
      provider.PositiveSign = "pos ";
      provider.NegativeSign = "neg ";

      // Define an array of strings to convert to UInt16 values.
      string[] values= { "34567", "+34567", "pos 34567", "34567.",
                         "34567.", "65535", "65535", "65535" };

      foreach (string value in values)
      {
         Console.Write("{0,-12:}  -->  ", value);
         try {
            Console.WriteLine("{0,17}", Convert.ToUInt16(value, provider));
         }
         catch (FormatException e) {
            Console.WriteLine("{0,17}", e.GetType().Name);
         }
      }
   }
}
// The example displays the following output:
//       34567         -->              34567
//       +34567        -->    FormatException
//       pos 34567     -->              34567
//       34567.        -->    FormatException
//       34567.        -->    FormatException
//       65535         -->              65535
//       65535         -->              65535
//       65535         -->              65535

open System
open System.Globalization

// Create a NumberFormatInfo object and set several of its
// properties that apply to numbers.
let provider = NumberFormatInfo()
provider.PositiveSign <- "pos "
provider.NegativeSign <- "neg "

// Define an array of strings to convert to UInt16 values.
let values =
    [| "34567"; "+34567"; "pos 34567"; "34567."
       "34567."; "65535"; "65535"; "65535" |]

for value in values do
    printf $"{value,-12}  -->  "
    try
        printfn $"{Convert.ToUInt16(value, provider),17}"
    with :? FormatException as e ->
        printfn $"{e.GetType().Name,17}"
// The example displays the following output:
//       34567         -->              34567
//       +34567        -->    FormatException
//       pos 34567     -->              34567
//       34567.        -->    FormatException
//       34567.        -->    FormatException
//       65535         -->              65535
//       65535         -->              65535
//       65535         -->              65535

Imports System.Globalization

Module Example
   Public Sub Main()
      ' Create a NumberFormatInfo object and set several of its
      ' properties that apply to numbers.
      Dim provider As New NumberFormatInfo()
      provider.PositiveSign = "pos "
      provider.NegativeSign = "neg "

      ' Define an array of strings to convert to UInt16 values.
      Dim values() As String = { "34567", "+34567", "pos 34567", _
                                 "34567.", "34567.", "65535", _
                                 "65535", "65535" }         

      For Each value As String In values
         Console.Write("{0,-12:}  -->  ", value)
         Try
            Console.WriteLine("{0,17}", Convert.ToUInt16(value, provider))
         Catch e As FormatException       
            Console.WriteLine("{0,17}", e.GetType().Name)
         End Try     
      Next
    End Sub 
End Module 
' The example displays the following output:
'       34567         -->              34567
'       +34567        -->    FormatException
'       pos 34567     -->              34567
'       34567.        -->    FormatException
'       34567.        -->    FormatException
'       65535         -->              65535
'       65535         -->              65535
'       65535         -->              65535

Keterangan

Nilai yang dikembalikan adalah hasil pemanggilan UInt16.Parse pada value.

providerIFormatProvider adalah instans NumberFormatInfo yang mendapatkan objek. Objek menyediakan NumberFormatInfo informasi khusus budaya tentang format value. Jika provider adalah null, NumberFormatInfo untuk budaya saat ini digunakan.

Berlaku untuk

ToUInt16(Single)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai bilangan floating-point presisi tunggal yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(float value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (float value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : single -> uint16

Public Shared Function ToUInt16 (value As Single) As UShort

Parameter

value: Single

Angka floating-point presisi tunggal untuk dikonversi.

Mengembalikan

UInt16

value, dibulatkan ke bilangan bulat terdekat yang tidak ditandatangani 16-bit. Jika value setengah antara dua bilangan bujur, angka genap dikembalikan; yaitu, 4,5 dikonversi menjadi 4, dan 5,5 dikonversi menjadi 6.

Atribut: CLSCompliantAttribute

Pengecualian

OverflowException

value kurang dari nol atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mengonversi setiap elemen dalam array nilai menjadi bilangan String bulat 16-bit yang tidak ditandatangani.

float[] numbers = { Single.MinValue, -1.38e10f, -1023.299f, -12.98f,
                   0f, 9.113e-16f, 103.919f, 17834.191f, Single.MaxValue };
ushort result;

foreach (float number in numbers)
{
   try {
      result = Convert.ToUInt16(number);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("{0} is outside the range of the UInt16 type.", number);
   }
}
// The example displays the following output:
//    -3.402823E+38 is outside the range of the UInt16 type.
//    -1.38E+10 is outside the range of the UInt16 type.
//    -1023.299 is outside the range of the UInt16 type.
//    -12.98 is outside the range of the UInt16 type.
//    Converted the Single value '0' to the UInt16 value 0.
//    Converted the Single value '9.113E-16' to the UInt16 value 0.
//    Converted the Single value '103.919' to the UInt16 value 104.
//    Converted the Single value '17834.19' to the UInt16 value 17834.
//    3.402823E+38 is outside the range of the UInt16 type.

let numbers = 
    [| Single.MinValue; -1.38e10f; -1023.299f; -12.98f
       0f; 9.113e-16f; 103.919f; 17834.191f; Single.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"{number} is outside the range of the UInt16 type."
// The example displays the following output:
//    -3.402823E+38 is outside the range of the UInt16 type.
//    -1.38E+10 is outside the range of the UInt16 type.
//    -1023.299 is outside the range of the UInt16 type.
//    -12.98 is outside the range of the UInt16 type.
//    Converted the Single value '0' to the UInt16 value 0.
//    Converted the Single value '9.113E-16' to the UInt16 value 0.
//    Converted the Single value '103.919' to the UInt16 value 104.
//    Converted the Single value '17834.19' to the UInt16 value 17834.
//    3.402823E+38 is outside the range of the UInt16 type.

Dim values() As Single = { Single.MinValue, -1.38e10, -1023.299, -12.98, _
                           0, 9.113e-16, 103.919, 17834.191, Single.MaxValue }
Dim result As UShort

For Each value As Single In values
   Try
      result = Convert.ToUInt16(value)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        value.GetType().Name, value, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("{0} is outside the range of the UInt16 type.", value)
   End Try   
Next                                 
' The example displays the following output:
'    -3.402823E+38 is outside the range of the UInt16 type.
'    -1.38E+10 is outside the range of the UInt16 type.
'    -1023.299 is outside the range of the UInt16 type.
'    -12.98 is outside the range of the UInt16 type.
'    Converted the Single value '0' to the UInt16 value 0.
'    Converted the Single value '9.113E-16' to the UInt16 value 0.
'    Converted the Single value '103.919' to the UInt16 value 104.
'    Converted the Single value '17834.19' to the UInt16 value 17834.
'    3.402823E+38 is outside the range of the UInt16 type.

Lihat juga

Single
Round

Berlaku untuk

ToUInt16(UInt64)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai bilangan bulat yang tidak ditandatangani 64-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(System::UInt64 value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (ulong value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : uint64 -> uint16

Public Shared Function ToUInt16 (value As ULong) As UShort

Parameter

value: UInt64

Bilangan bulat 64-bit yang tidak ditandatangani untuk dikonversi.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani yang setara dengan value.

Atribut: CLSCompliantAttribute

Pengecualian

OverflowException

value lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mencoba mengonversi setiap elemen dalam array bilangan bulat panjang yang tidak ditandatangani menjadi bilangan bulat 16-bit yang tidak ditandatangani.

ulong[] numbers = { UInt64.MinValue, 121, 340, UInt64.MaxValue };
ushort result;

foreach (ulong number in numbers)
{
   try {
      result = Convert.ToUInt16(number);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    Converted the UInt64 value '0' to the UInt16 value 0.
//    Converted the UInt64 value '121' to the UInt16 value 121.
//    Converted the UInt64 value '340' to the UInt16 value 340.
//    The UInt64 value 18446744073709551615 is outside the range of the UInt16 type.

let numbers = [| UInt64.MinValue; 121uL; 340uL; UInt64.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"The {number.GetType().Name} value {number} is outside the range of the UInt16 type."
// The example displays the following output:
//    Converted the UInt64 value '0' to the UInt16 value 0.
//    Converted the UInt64 value '121' to the UInt16 value 121.
//    Converted the UInt64 value '340' to the UInt16 value 340.
//    The UInt64 value 18446744073709551615 is outside the range of the UInt16 type.

Dim numbers() As ULong = { UInt64.MinValue, 121, 340, UInt64.MaxValue }
Dim result As UShort
For Each number As ULong In numbers
   Try
      result = Convert.ToUInt16(number)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    Converted the UInt64 value '0' to the UInt16 value 0.
'    Converted the UInt64 value '121' to the UInt16 value 121.
'    Converted the UInt64 value '340' to the UInt16 value 340.
'    The UInt64 value 18446744073709551615 is outside the range of the UInt16 type.

Berlaku untuk

ToUInt16(SByte)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai bilangan bulat bertanda tangan 8-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(System::SByte value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (sbyte value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : sbyte -> uint16

Public Shared Function ToUInt16 (value As SByte) As UShort

Parameter

value: SByte

Bilangan bulat bertanda tangan 8-bit untuk dikonversi.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani yang setara dengan value.

Atribut: CLSCompliantAttribute

Pengecualian

OverflowException

value kurang dari nol.

Contoh

Contoh berikut mengonversi setiap elemen dalam array byte yang ditandatangani menjadi bilangan bulat 16-bit yang tidak ditandatangani.

sbyte[] numbers = { SByte.MinValue, -1, 0, 10, SByte.MaxValue };
ushort result;

foreach (sbyte number in numbers)
{
   try {
      result = Convert.ToUInt16(number);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("{0} is outside the range of the UInt16 type.", number);
   }
}
// The example displays the following output:
//    -128 is outside the range of the UInt16 type.
//    -1 is outside the range of the UInt16 type.
//    Converted the SByte value '0' to the UInt16 value 0.
//    Converted the SByte value '10' to the UInt16 value 10.
//    Converted the SByte value '127' to the UInt16 value 127.

let numbers = [| SByte.MinValue; -1y; 0y; 10y; SByte.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"{number} is outside the range of the UInt16 type."
// The example displays the following output:
//    -128 is outside the range of the UInt16 type.
//    -1 is outside the range of the UInt16 type.
//    Converted the SByte value '0' to the UInt16 value 0.
//    Converted the SByte value '10' to the UInt16 value 10.
//    Converted the SByte value '127' to the UInt16 value 127.

Dim numbers() As SByte = { SByte.MinValue, -1, 0, 10, SByte.MaxValue }
Dim result As UShort

For Each number As SByte In numbers
   Try
      result = Convert.ToUInt16(number)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("{0} is outside the range of the UInt16 type.", number)
   End Try
Next
' The example displays the following output:
'    -128 is outside the range of the UInt16 type.
'    -1 is outside the range of the UInt16 type.
'    Converted the SByte value '0' to the UInt16 value 0.
'    Converted the SByte value '10' to the UInt16 value 10.
'    Converted the SByte value '127' to the UInt16 value 127.

Berlaku untuk

ToUInt16(Char)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai karakter Unicode yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(char value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (char value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : char -> uint16

Public Shared Function ToUInt16 (value As Char) As UShort

Parameter

value: Char

Karakter Unicode yang akan dikonversi.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani setara valuedengan .

Atribut: CLSCompliantAttribute

Contoh

Contoh berikut mengonversi setiap elemen dalam array karakter menjadi bilangan bulat 16-bit yang tidak ditandatangani.

char[] chars = { 'a', 'z', '\x0007', '\x03FF',
                 '\x7FFF', '\xFFFE' };
ushort result;

foreach (char ch in chars)
{
   try {
      result = Convert.ToUInt16(ch);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        ch.GetType().Name, ch,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("Unable to convert u+{0} to a UInt16.",
                        ((int)ch).ToString("X4"));
   }
}
// The example displays the following output:
//    Converted the Char value 'a' to the UInt16 value 97.
//    Converted the Char value 'z' to the UInt16 value 122.
//    Converted the Char value '' to the UInt16 value 7.
//    Converted the Char value '?' to the UInt16 value 1023.
//    Converted the Char value '?' to the UInt16 value 32767.
//    Converted the Char value '?' to the UInt16 value 65534.

let chars = 
    [| 'a'; 'z'; '\u0007'; '\u03FF'; '\u7FFF'; '\uFFFE' |]

for ch in chars do
    try
        let result = Convert.ToUInt16 ch
        printfn $"Converted the {ch.GetType().Name} value '{ch}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"Unable to convert u+{int ch:X4} to a UInt16."
// The example displays the following output:
//    Converted the Char value 'a' to the UInt16 value 97.
//    Converted the Char value 'z' to the UInt16 value 122.
//    Converted the Char value '' to the UInt16 value 7.
//    Converted the Char value '?' to the UInt16 value 1023.
//    Converted the Char value '?' to the UInt16 value 32767.
//    Converted the Char value '?' to the UInt16 value 65534.

Dim chars() As Char = { "a"c, "z"c, ChrW(7), ChrW(1023), _
                        ChrW(Short.MaxValue), ChrW(&hFFFE) }
Dim result As UShort
                        
For Each ch As Char in chars
   result = Convert.ToUInt16(ch)
   Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                     ch.GetType().Name, ch, _
                     result.GetType().Name, result)
Next   
' The example displays the following output:
'    Converted the Char value 'a' to the UInt16 value 97.
'    Converted the Char value 'z' to the UInt16 value 122.
'    Converted the Char value '' to the UInt16 value 7.
'    Converted the Char value '?' to the UInt16 value 1023.
'    Converted the Char value '?' to the UInt16 value 32767.
'    Converted the Char value '?' to the UInt16 value 65534.

Berlaku untuk

ToUInt16(Int64)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai bilangan bulat bertanda tangan 64-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(long value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (long value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : int64 -> uint16

Public Shared Function ToUInt16 (value As Long) As UShort

Parameter

value: Int64

Bilangan bulat bertanda tangan 64-bit untuk dikonversi.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani yang setara dengan value.

Atribut: CLSCompliantAttribute

Pengecualian

OverflowException

value kurang dari nol atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mengonversi setiap elemen dalam array bilangan bulat panjang menjadi bilangan bulat 16-bit yang tidak ditandatangani.

long[] numbers = { Int64.MinValue, -1, 0, 121, 340, Int64.MaxValue };
ushort result;

foreach (long number in numbers)
{
   try {
      result = Convert.ToUInt16(number);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    The Int64 value -9223372036854775808 is outside the range of the UInt16 type.
//    The Int64 value -1 is outside the range of the UInt16 type.
//    Converted the Int64 value '0' to the UInt16 value 0.
//    Converted the Int64 value '121' to the UInt16 value 121.
//    Converted the Int64 value '340' to the UInt16 value 340.
//    The Int64 value 9223372036854775807 is outside the range of the UInt16 type.

let numbers = [| Int64.MinValue; -1; 0; 121; 340; Int64.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn "The {number.GetType().Name} value {number} is outside the range of the UInt16 type."
// The example displays the following output:
//    The Int64 value -9223372036854775808 is outside the range of the UInt16 type.
//    The Int64 value -1 is outside the range of the UInt16 type.
//    Converted the Int64 value '0' to the UInt16 value 0.
//    Converted the Int64 value '121' to the UInt16 value 121.
//    Converted the Int64 value '340' to the UInt16 value 340.
//    The Int64 value 9223372036854775807 is outside the range of the UInt16 type.

Dim numbers() As Long = { Int64.MinValue, -1, 0, 121, 340, Int64.MaxValue }
Dim result As UShort
For Each number As Long In numbers
   Try
      result = Convert.ToUInt16(number)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    The Int64 value -9223372036854775808 is outside the range of the UInt16 type.
'    The Int64 value -1 is outside the range of the UInt16 type.
'    Converted the Int64 value '0' to the UInt16 value 0.
'    Converted the Int64 value '121' to the UInt16 value 121.
'    Converted the Int64 value '340' to the UInt16 value 340.
'    The Int64 value 9223372036854775807 is outside the range of the UInt16 type.

Berlaku untuk

ToUInt16(Int32)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai bilangan bulat bertanda tangan 32-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(int value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (int value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : int -> uint16

Public Shared Function ToUInt16 (value As Integer) As UShort

Parameter

value: Int32

Bilangan bulat bertanda tangan 32-bit untuk dikonversi.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani yang setara dengan value.

Atribut: CLSCompliantAttribute

Pengecualian

OverflowException

value kurang dari nol atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mengonversi setiap elemen dalam array bilangan bulat menjadi bilangan bulat 16-bit yang tidak ditandatangani.

int[] numbers = { Int32.MinValue, -1, 0, 121, 340, Int32.MaxValue };
ushort result;

foreach (int number in numbers)
{
   try {
      result = Convert.ToUInt16(number);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    The Int32 value -2147483648 is outside the range of the UInt16 type.
//    The Int32 value -1 is outside the range of the UInt16 type.
//    Converted the Int32 value '0' to the UInt16 value 0.
//    Converted the Int32 value '121' to the UInt16 value 121.
//    Converted the Int32 value '340' to the UInt16 value 340.
//    The Int32 value 2147483647 is outside the range of the UInt16 type.

let numbers = [| Int32.MinValue; -1; 0; 121; 340; Int32.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn "The {number.GetType().Name} value {number} is outside the range of the UInt16 type."
                        
// The example displays the following output:
//    The Int32 value -2147483648 is outside the range of the UInt16 type.
//    The Int32 value -1 is outside the range of the UInt16 type.
//    Converted the Int32 value '0' to the UInt16 value 0.
//    Converted the Int32 value '121' to the UInt16 value 121.
//    Converted the Int32 value '340' to the UInt16 value 340.
//    The Int32 value 2147483647 is outside the range of the UInt16 type.

Dim numbers() As Integer = { Int32.MinValue, -1, 0, 121, 340, Int32.MaxValue }
Dim result As UShort

For Each number As Integer In numbers
   Try
      result = Convert.ToUInt16(number)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    The Int32 value -2147483648 is outside the range of the UInt16 type.
'    The Int32 value -1 is outside the range of the UInt16 type.
'    Converted the Int32 value '0' to the UInt16 value 0.
'    Converted the Int32 value '121' to the UInt16 value 121.
'    Converted the Int32 value '340' to the UInt16 value 340.
'    The Int32 value 2147483647 is outside the range of the UInt16 type.

Berlaku untuk

ToUInt16(Int16)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai bilangan bulat bertanda 16-bit yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(short value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (short value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : int16 -> uint16

Public Shared Function ToUInt16 (value As Short) As UShort

Parameter

value: Int16

Bilangan bulat bertanda tangan 16-bit untuk dikonversi.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani yang setara dengan value.

Atribut: CLSCompliantAttribute

Pengecualian

OverflowException

value kurang dari nol.

Contoh

Contoh berikut mencoba mengonversi setiap elemen dalam array bilangan bulat 16-bit menjadi bilangan bulat 16-bit yang tidak ditandatangani.

short[] numbers = { Int16.MinValue, -132, 0, 121, 16103, Int16.MaxValue  };
ushort result;

foreach (short number in numbers)
{
   try {
      result = Convert.ToUInt16(number);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    The Int16 value -32768 is outside the range of the UInt16 type.
//    The Int16 value -132 is outside the range of the UInt16 type.
//    Converted the Int16 value '0' to the UInt16 value 0.
//    Converted the Int16 value '121' to the UInt16 value 121.
//    Converted the Int16 value '16103' to the UInt16 value 16103.
//    Converted the Int16 value '32767' to the UInt16 value 32767.

let numbers = [| Int16.MinValue; -132s; 0s; 121s; 16103s; Int16.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"The {number.GetType().Name} value {number} is outside the range of the UInt16 type."
// The example displays the following output:
//    The Int16 value -32768 is outside the range of the UInt16 type.
//    The Int16 value -132 is outside the range of the UInt16 type.
//    Converted the Int16 value '0' to the UInt16 value 0.
//    Converted the Int16 value '121' to the UInt16 value 121.
//    Converted the Int16 value '16103' to the UInt16 value 16103.
//    Converted the Int16 value '32767' to the UInt16 value 32767.

Dim numbers() As Short = { Int16.MinValue, -132, 0, 121, 16103, Int16.MaxValue }
Dim result As UShort

For Each number As Short In numbers
   Try
      result = Convert.ToUInt16(number)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    The Int16 value -32768 is outside the range of the UInt16 type.
'    The Int16 value -132 is outside the range of the UInt16 type.
'    Converted the Int16 value '0' to the UInt16 value 0.
'    Converted the Int16 value '121' to the UInt16 value 121.
'    Converted the Int16 value '16103' to the UInt16 value 16103.
'    Converted the Int16 value '32767' to the UInt16 value 32767.

Berlaku untuk

ToUInt16(Decimal)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai angka desimal yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(System::Decimal value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (decimal value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : decimal -> uint16

Public Shared Function ToUInt16 (value As Decimal) As UShort

Parameter

value: Decimal

Angka desimal yang akan dikonversi.

Mengembalikan

UInt16

Atribut: CLSCompliantAttribute

Pengecualian

OverflowException

value kurang dari nol atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mengonversi setiap elemen dalam array nilai menjadi bilangan Decimal bulat 16-bit yang tidak ditandatangani.

decimal[] numbers = { Decimal.MinValue, -1034.23m, -12m, 0m, 147m,
                            9214.16m, Decimal.MaxValue };
ushort result;

foreach (decimal number in numbers)
{
   try {
      result = Convert.ToUInt16(number);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException)
   {
      Console.WriteLine("{0} is outside the range of the UInt16 type.",
                        number);
   }
}
// The example displays the following output:
//    -79228162514264337593543950335 is outside the range of the UInt16 type.
//    -1034.23 is outside the range of the UInt16 type.
//    -12 is outside the range of the UInt16 type.
//    Converted the Decimal value '0' to the UInt16 value 0.
//    Converted the Decimal value '147' to the UInt16 value 147.
//    Converted the Decimal value '9214.16' to the UInt16 value 9214.
//    79228162514264337593543950335 is outside the range of the UInt16 type.

let numbers = 
    [| Decimal.MinValue; -1034.23m; -12m; 0m; 147m; 9214.16m; Decimal.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"{number} is outside the range of the UInt16 type."
// The example displays the following output:
//    -79228162514264337593543950335 is outside the range of the UInt16 type.
//    -1034.23 is outside the range of the UInt16 type.
//    -12 is outside the range of the UInt16 type.
//    Converted the Decimal value '0' to the UInt16 value 0.
//    Converted the Decimal value '147' to the UInt16 value 147.
//    Converted the Decimal value '9214.16' to the UInt16 value 9214.
//    79228162514264337593543950335 is outside the range of the UInt16 type.

Dim values() As Decimal = { Decimal.MinValue, -1034.23d, -12d, 0d, 147d, _
                            9214.16d, Decimal.MaxValue }
Dim result As UShort

For Each value As Decimal In values
   Try
      result = Convert.ToUInt16(value)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        value.GetType().Name, value, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("{0} is outside the range of the UInt16 type.", _
                        value)
   End Try   
Next                                  
' The example displays the following output:
'    -79228162514264337593543950335 is outside the range of the UInt16 type.
'    -1034.23 is outside the range of the UInt16 type.
'    -12 is outside the range of the UInt16 type.
'    Converted the Decimal value '0' to the UInt16 value 0.
'    Converted the Decimal value '147' to the UInt16 value 147.
'    Converted the Decimal value '9214.16' to the UInt16 value 9214.
'    79228162514264337593543950335 is outside the range of the UInt16 type.

Lihat juga

Round

Berlaku untuk

ToUInt16(DateTime)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Memanggil metode ini selalu melemparkan InvalidCastException.

public:
 static System::UInt16 ToUInt16(DateTime value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (DateTime value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : DateTime -> uint16

Public Shared Function ToUInt16 (value As DateTime) As UShort

Parameter

value: DateTime

Nilai tanggal dan waktu yang akan dikonversi.

Mengembalikan

UInt16

Konversi ini tidak didukung. Tidak ada nilai yang dikembalikan.

Atribut: CLSCompliantAttribute

Pengecualian

InvalidCastException

Konversi ini tidak didukung.

Berlaku untuk

ToUInt16(Byte)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai bilangan bulat tidak bertanda 8-bit yang ditentukan ke bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(System::Byte value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (byte value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : byte -> uint16

Public Shared Function ToUInt16 (value As Byte) As UShort

Parameter

value: Byte

Bilangan bulat 8-bit yang tidak ditandatangani untuk dikonversi.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani yang setara dengan value.

Atribut: CLSCompliantAttribute

Contoh

Contoh berikut mengonversi setiap elemen dalam array byte menjadi bilangan bulat 16-bit yang tidak ditandatangani.

byte[] bytes = { Byte.MinValue, 14, 122, Byte.MaxValue};
ushort result;

foreach (byte byteValue in bytes)
{
   result = Convert.ToUInt16(byteValue);
   Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                     byteValue.GetType().Name, byteValue,
                     result.GetType().Name, result);
}
// The example displays the following output:
//       Converted the Byte value '0' to the UInt16 value 0.
//       Converted the Byte value '14' to the UInt16 value 14.
//       Converted the Byte value '122' to the UInt16 value 122.
//       Converted the Byte value '255' to the UInt16 value 255.

let bytes = [| Byte.MinValue; 14uy; 122uy; Byte.MaxValue |]

for byteValue in bytes do
    let result = Convert.ToUInt16 byteValue
    printfn $"Converted the {byteValue.GetType().Name} value '{byteValue}' to the {result.GetType().Name} value {result}."
// The example displays the following output:
//       Converted the Byte value '0' to the UInt16 value 0.
//       Converted the Byte value '14' to the UInt16 value 14.
//       Converted the Byte value '122' to the UInt16 value 122.
//       Converted the Byte value '255' to the UInt16 value 255.

Dim bytes() As Byte = { Byte.MinValue, 14, 122, Byte.MaxValue}
Dim result As UShort

For Each number As Byte In bytes
   result = Convert.ToUInt16(number)
   Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                     number.GetType().Name, number, _
                     result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the Byte value '0' to the UInt16 value 0.
'    Converted the Byte value '14' to the UInt16 value 14.
'    Converted the Byte value '122' to the UInt16 value 122.
'    Converted the Byte value '255' to the UInt16 value 255.

Berlaku untuk

ToUInt16(Boolean)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai Boolean yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(bool value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (bool value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : bool -> uint16

Public Shared Function ToUInt16 (value As Boolean) As UShort

Parameter

value: Boolean

Nilai Boolean yang akan dikonversi.

Mengembalikan

UInt16

Angka 1 jika value adalah true; jika tidak, 0.

Atribut: CLSCompliantAttribute

Contoh

Contoh berikut mengonversi nilai true Boolean dan false menjadi bilangan bulat 16-bit yang tidak ditandatangani.

bool falseFlag = false;
bool trueFlag = true;

Console.WriteLine("{0} converts to {1}.", falseFlag,
                  Convert.ToInt16(falseFlag));
Console.WriteLine("{0} converts to {1}.", trueFlag,
                  Convert.ToUInt16(trueFlag));
// The example displays the following output:
//       False converts to 0.
//       True converts to 1.

let falseFlag = false
let trueFlag = true

printfn $"{falseFlag} converts to {Convert.ToInt16 falseFlag}."
printfn $"{trueFlag} converts to {Convert.ToInt16 trueFlag}."
// The example displays the following output:
//       False converts to 0.
//       True converts to 1.

Dim falseFlag As Boolean = False
Dim trueFlag As Boolean = True

Console.WriteLine("{0} converts to {1}.", falseFlag, _
                  Convert.ToUInt16(falseFlag))
Console.WriteLine("{0} converts to {1}.", trueFlag, _
                  Convert.ToUInt16(trueFlag))
' The example displays the following output:
'       False converts to 0.
'       True converts to 1.

Berlaku untuk

ToUInt16(Object)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai objek yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit.

public:
 static System::UInt16 ToUInt16(System::Object ^ value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (object value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (object? value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : obj -> uint16

Public Shared Function ToUInt16 (value As Object) As UShort

Parameter

value: Object

Objek yang mengimplementasikan IConvertible antarmuka, atau null.

Mengembalikan

UInt16

Bilangan bulat 16-bit yang tidak ditandatangani yang setara valuedengan , atau nol jika value adalah null.

Atribut: CLSCompliantAttribute

Pengecualian

FormatException

value tidak dalam format yang sesuai.

InvalidCastException

value tidak mengimplementasikan IConvertible antarmuka.

-atau-

Konversi tidak didukung.

OverflowException

value mewakili angka yang kurang dari UInt16.MinValue atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mencoba mengonversi setiap elemen dalam array objek menjadi bilangan bulat 16-bit yang tidak ditandatangani.

object[] values= { true, -12, 163, 935, 'x', new DateTime(2009, 5, 12),
                   "104", "103.0", "-1", "1.00e2", "One", 1.00e2};
ushort result;

foreach (object value in values)
{
   try {
      result = Convert.ToUInt16(value);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        value.GetType().Name, value,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.",
                        value.GetType().Name, value);
   }
   catch (FormatException) {
      Console.WriteLine("The {0} value {1} is not in a recognizable format.",
                        value.GetType().Name, value);
   }
   catch (InvalidCastException) {
      Console.WriteLine("No conversion to a UInt16 exists for the {0} value {1}.",
                        value.GetType().Name, value);
   }
}
// The example displays the following output:
//    Converted the Boolean value 'True' to the UInt16 value 1.
//    The Int32 value -12 is outside the range of the UInt16 type.
//    Converted the Int32 value '163' to the UInt16 value 163.
//    Converted the Int32 value '935' to the UInt16 value 935.
//    Converted the Char value 'x' to the UInt16 value 120.
//    No conversion to a UInt16 exists for the DateTime value 5/12/2009 12:00:00 AM.
//    Converted the String value '104' to the UInt16 value 104.
//    The String value 103.0 is not in a recognizable format.
//    The String value -1 is outside the range of the UInt16 type.
//    The String value 1.00e2 is not in a recognizable format.
//    The String value One is not in a recognizable format.
//    Converted the Double value '100' to the UInt16 value 100.

let values: obj[] =
    [| true; -12; 163; 935; 'x'; DateTime(2009, 5, 12)
       "104"; "103.0"; "-1"; "1.00e2"; "One"; 1.00e2 |]

for value in values do
    try
        let result = Convert.ToUInt16 value
        printfn $"Converted the {value.GetType().Name} value '{value}' to the {result.GetType().Name} value {result}."
    with 
    | :? OverflowException ->
        printfn $"The {value.GetType().Name} value {value} is outside the range of the UInt16 type."
    | :? FormatException ->
        printfn $"The {value.GetType().Name} value {value} is not in a recognizable format."
    | :? InvalidCastException ->
        printfn $"No conversion to a UInt16 exists for the {value.GetType().Name} value {value}."
// The example displays the following output:
//    Converted the Boolean value 'True' to the UInt16 value 1.
//    The Int32 value -12 is outside the range of the UInt16 type.
//    Converted the Int32 value '163' to the UInt16 value 163.
//    Converted the Int32 value '935' to the UInt16 value 935.
//    Converted the Char value 'x' to the UInt16 value 120.
//    No conversion to a UInt16 exists for the DateTime value 5/12/2009 12:00:00 AM.
//    Converted the String value '104' to the UInt16 value 104.
//    The String value 103.0 is not in a recognizable format.
//    The String value -1 is outside the range of the UInt16 type.
//    The String value 1.00e2 is not in a recognizable format.
//    The String value One is not in a recognizable format.
//    Converted the Double value '100' to the UInt16 value 100.

   Dim values() As Object = { True, -12, 163, 935, "x"c, #5/12/2009#, _
                              "104", "103.0", "-1", _
                              "1.00e2", "One", 1.00e2}
   Dim result As UShort
   
   For Each value As Object In values
      Try
         result = Convert.ToUInt16(value)
         Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                           value.GetType().Name, value, _
                           result.GetType().Name, result)
      Catch e As OverflowException
         Console.WriteLine("The {0} value {1} is outside the range of the UInt16 type.", _
                           value.GetType().Name, value)
      Catch e As FormatException
         Console.WriteLine("The {0} value {1} is not in a recognizable format.", _
                           value.GetType().Name, value)
      Catch e As InvalidCastException
         Console.WriteLine("No conversion to an Int16 exists for the {0} value {1}.", _
                           value.GetType().Name, value)
                           
      End Try
   Next                           
   ' The example displays the following output:
'    Converted the Boolean value 'True' to the UInt16 value 1.
'    The Int32 value -12 is outside the range of the UInt16 type.
'    Converted the Int32 value '163' to the UInt16 value 163.
'    Converted the Int32 value '935' to the UInt16 value 935.
'    Converted the Char value 'x' to the UInt16 value 120.
'    No conversion to an Int16 exists for the DateTime value 5/12/2009 12:00:00 AM.
'    Converted the String value '104' to the UInt16 value 104.
'    The String value 103.0 is not in a recognizable format.
'    The String value -1 is outside the range of the UInt16 type.
'    The String value 1.00e2 is not in a recognizable format.
'    The String value One is not in a recognizable format.
'    Converted the Double value '100' to the UInt16 value 100.

Keterangan

Nilai yang dikembalikan adalah hasil dari memanggil IConvertible.ToUInt16 metode dari jenis yang mendasar dari value.

Berlaku untuk

ToUInt16(Double)

Sumber:: Convert.cs

Sumber:: Convert.cs

Sumber:: Convert.cs

Penting

API ini bukan kompatibel CLS.

Mengonversi nilai angka floating-point presisi ganda yang ditentukan menjadi bilangan bulat yang tidak ditandatangani 16-bit yang setara.

public:
 static System::UInt16 ToUInt16(double value);

[System.CLSCompliant(false)]
public static ushort ToUInt16 (double value);

[<System.CLSCompliant(false)>]
static member ToUInt16 : double -> uint16

Public Shared Function ToUInt16 (value As Double) As UShort

Parameter

value: Double

Angka floating-point presisi ganda untuk dikonversi.

Mengembalikan

UInt16

Atribut: CLSCompliantAttribute

Pengecualian

OverflowException

value kurang dari nol atau lebih besar dari UInt16.MaxValue.

Contoh

Contoh berikut mengonversi setiap elemen dalam array nilai menjadi bilangan Double bulat 16-bit yang tidak ditandatangani.

double[] numbers = { Double.MinValue, -1.38e10, -1023.299, -12.98,
                    0, 9.113e-16, 103.919, 17834.191, Double.MaxValue };
ushort result;

foreach (double number in numbers)
{
   try {
      result = Convert.ToUInt16(number);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException)
   {
      Console.WriteLine("{0} is outside the range of the UInt16 type.", number);
   }
}
// The example displays the following output:
//    -1.79769313486232E+308 is outside the range of the UInt16 type.
//    -13800000000 is outside the range of the UInt16 type.
//    -1023.299 is outside the range of the UInt16 type.
//    -12.98 is outside the range of the UInt16 type.
//    Converted the Double value '0' to the UInt16 value 0.
//    Converted the Double value '9.113E-16' to the UInt16 value 0.
//    Converted the Double value '103.919' to the UInt16 value 104.
//    Converted the Double value '17834.191' to the UInt16 value 17834.
//    1.79769313486232E+308 is outside the range of the UInt16 type.

let numbers = 
    [| Double.MinValue; -1.38e10; -1023.299; -12.98
       0; 9.113e-16; 103.919; 17834.191; Double.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"{number} is outside the range of the UInt16 type."
// The example displays the following output:
//    -1.79769313486232E+308 is outside the range of the UInt16 type.
//    -13800000000 is outside the range of the UInt16 type.
//    -1023.299 is outside the range of the UInt16 type.
//    -12.98 is outside the range of the UInt16 type.
//    Converted the Double value '0' to the UInt16 value 0.
//    Converted the Double value '9.113E-16' to the UInt16 value 0.
//    Converted the Double value '103.919' to the UInt16 value 104.
//    Converted the Double value '17834.191' to the UInt16 value 17834.
//    1.79769313486232E+308 is outside the range of the UInt16 type.

Dim values() As Double = { Double.MinValue, -1.38e10, -1023.299, -12.98, _
                           0, 9.113e-16, 103.919, 17834.191, Double.MaxValue }
Dim result As UShort

For Each value As Double In values
   Try
      result = Convert.ToUInt16(value)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        value.GetType().Name, value, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("{0} is outside the range of the UInt16 type.", value)
   End Try   
Next                                 
' The example displays the following output:
'    -1.79769313486232E+308 is outside the range of the UInt16 type.
'    -13800000000 is outside the range of the UInt16 type.
'    -1023.299 is outside the range of the UInt16 type.
'    -12.98 is outside the range of the UInt16 type.
'    Converted the Double value '0' to the UInt16 value 0.
'    Converted the Double value '9.113E-16' to the UInt16 value 0.
'    Converted the Double value '103.919' to the UInt16 value 104.
'    Converted the Double value '17834.191' to the UInt16 value 17834.
'    1.79769313486232E+308 is outside the range of the UInt16 type.

Lihat juga

Double
Round

Berlaku untuk