Decimal.Explicit Operátor
Definice
Důležité
Některé informace platí pro předběžně vydaný produkt, který se může zásadně změnit, než ho výrobce nebo autor vydá. Microsoft neposkytuje žádné záruky, výslovné ani předpokládané, týkající se zde uváděných informací.
Definuje explicitní převod mezi objektem a jiným typem Decimal .
Přetížení
Explicit(Single to Decimal) |
Definuje explicitní převod čísla s plovoucí desetinou čárkou s jednou přesností Decimalna . |
Explicit(Double to Decimal) |
Definuje explicitní převod čísla s plovoucí desetinou čárkou s dvojitou přesností Decimalna . |
Explicit(Decimal to UInt64) |
Definuje explicitní převod Decimal čísla na 64bitové celé číslo bez znaménka. Toto rozhraní API neodpovídá specifikaci CLS. |
Explicit(Decimal to UInt32) |
Definuje explicitní převod Decimal čísla na 32bitové celé číslo bez znaménka. Toto rozhraní API neodpovídá specifikaci CLS. |
Explicit(Decimal to UInt16) |
Definuje explicitní převod Decimal čísla na 16bitové celé číslo bez znaménka. Toto rozhraní API neodpovídá specifikaci CLS. |
Explicit(Decimal to SByte) |
Definuje explicitní převod čísla Decimal na 8bitové celé číslo se signoumi sadou. Toto rozhraní API neodpovídá specifikaci CLS. |
Explicit(Decimal to Single) |
Definuje explicitní převod čísla s plovoucí desetinou čárkou Decimal s jednou přesností. |
Explicit(Decimal to Int32) |
Definuje explicitní převod Decimal čísla na celé číslo se 32 bity. |
Explicit(Decimal to Int16) |
Definuje explicitní převod čísla Decimal na celé číslo se 16bitovým signedm. |
Explicit(Decimal to Double) |
Definuje explicitní převod Decimal čísla na číslo s plovoucí desetinou čárkou s dvojitou přesností. |
Explicit(Decimal to Char) |
Definuje explicitní převod znaku Decimal na znak Unicode. |
Explicit(Decimal to Byte) |
Definuje explicitní převod Decimal čísla na 8bitové celé číslo bez znaménka. |
Explicit(Decimal to Int64) |
Definuje explicitní převod čísla Decimal na celé číslo se 64 bity. |
Explicit(Single to Decimal)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Definuje explicitní převod čísla s plovoucí desetinou čárkou s jednou přesností Decimalna .
public:
static explicit operator System::Decimal(float value);
public static explicit operator decimal (float value);
static member op_Explicit : single -> decimal
Public Shared Narrowing Operator CType (value As Single) As Decimal
Parametry
- value
- Single
Číslo s plovoucí desetinnou čárkou a jednoduchou přesností pro převod.
Návraty
Převedené číslo s plovoucí desetinou čárkou s jednou přesností.
Výjimky
value
je větší než Decimal.MaxValue nebo menší než Decimal.MinValue.
-nebo-
value
je NaN, PositiveInfinitynebo NegativeInfinity.
Příklady
Následující příklad převede Single hodnoty na Decimal čísla pomocí operátoru do Decimal převoduSingle. Tento převod vyžaduje operátor op_Explicit v jazyce Visual Basic.
// Example of the explicit conversion from float to Decimal.
using namespace System;
#define formatter "{0,16:E7}{1,33}"
// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
String^ exceptionType = ex->GetType()->ToString();
return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}
// Convert the float argument; catch exceptions that are thrown.
void DecimalFromSingle( float argument )
{
Object^ decValue;
// Convert the float argument to a Decimal value.
try
{
decValue = (Decimal)argument;
}
catch ( Exception^ ex )
{
decValue = GetExceptionType( ex );
}
Console::WriteLine( formatter, argument, decValue );
}
int main()
{
Console::WriteLine( "This example of the explicit conversion from float "
"to Decimal \ngenerates the following output.\n" );
Console::WriteLine( formatter, "float argument", "Decimal value" );
Console::WriteLine( formatter, "--------------", "-------------" );
// Convert float values and display the results.
DecimalFromSingle( 1.2345E-30F );
DecimalFromSingle( 1.2345E-26F );
DecimalFromSingle( 1.23456E-22F );
DecimalFromSingle( 1.23456E-12F );
DecimalFromSingle( 1.234567F );
DecimalFromSingle( 1.234567E+12F );
DecimalFromSingle( 1.2345678E+28F );
DecimalFromSingle( 1.2345678E+30F );
}
/*
This example of the explicit conversion from float to Decimal
generates the following output.
float argument Decimal value
-------------- -------------
1.2345000E-030 0
1.2345000E-026 0.0000000000000000000000000123
1.2345600E-022 0.000000000000000000000123456
1.2345600E-012 0.00000000000123456
1.2345671E+000 1.234567
1.2345670E+012 1234567000000
1.2345678E+028 12345680000000000000000000000
1.2345678E+030 OverflowException
*/
// Example of the explicit conversion from float to decimal.
using System;
class DecimalFromSingleDemo
{
const string formatter = "{0,16:E7}{1,33}";
// Get the exception type name; remove the namespace prefix.
public static string GetExceptionType( Exception ex )
{
string exceptionType = ex.GetType( ).ToString( );
return exceptionType.Substring(
exceptionType.LastIndexOf( '.' ) + 1 );
}
// Convert the float argument; catch exceptions that are thrown.
public static void DecimalFromSingle( float argument )
{
object decValue;
// Convert the float argument to a decimal value.
try
{
decValue = (decimal)argument;
}
catch( Exception ex )
{
decValue = GetExceptionType( ex );
}
Console.WriteLine( formatter, argument, decValue );
}
public static void Main( )
{
Console.WriteLine(
"This example of the explicit conversion from float " +
"to decimal \ngenerates the following output.\n" );
Console.WriteLine( formatter, "float argument",
"decimal value" );
Console.WriteLine( formatter, "--------------",
"-------------" );
// Convert float values and display the results.
DecimalFromSingle( 1.2345E-30F );
DecimalFromSingle( 1.2345E-26F );
DecimalFromSingle( 1.23456E-22F );
DecimalFromSingle( 1.23456E-12F );
DecimalFromSingle( 1.234567F );
DecimalFromSingle( 1.234567E+12F );
DecimalFromSingle( 1.2345678E+28F );
DecimalFromSingle( 1.2345678E+30F );
}
}
/*
This example of the explicit conversion from float to decimal
generates the following output.
float argument decimal value
-------------- -------------
1.2345000E-030 0
1.2345000E-026 0.0000000000000000000000000123
1.2345600E-022 0.000000000000000000000123456
1.2345600E-012 0.00000000000123456
1.2345671E+000 1.234567
1.2345670E+012 1234567000000
1.2345678E+028 12345680000000000000000000000
1.2345678E+030 OverflowException
*/
// Example of the explicit conversion from float to decimal.
let print obj1 obj2 = printfn $"{obj1,16:E7}{obj2,33}"
// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
let exceptionType = ex.GetType() |> string
exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)
// Convert the float argument; catch exceptions that are thrown.
let decimalFromSingle (argument: float32) =
// Convert the float argument to a decimal value.
try
decimal argument
|> print argument
with ex ->
getExceptionType ex
|> print argument
printfn "This example of the explicit conversion from float to decimal \ngenerates the following output.\n"
print "float argument" "decimal value"
print "--------------" "-------------"
// Convert float values and display the results.
decimalFromSingle 1.2345E-30f
decimalFromSingle 1.2345E-26f
decimalFromSingle 1.23456E-22f
decimalFromSingle 1.23456E-12f
decimalFromSingle 1.234567f
decimalFromSingle 1.234567E+12f
decimalFromSingle 1.2345678E+28f
decimalFromSingle 1.2345678E+30f
// This example of the explicit conversion from float to decimal
// generates the following output.
//
// float argument decimal value
// -------------- -------------
// 1.2345000E-030 0
// 1.2345000E-026 0.0000000000000000000000000123
// 1.2345600E-022 0.000000000000000000000123456
// 1.2345600E-012 0.00000000000123456
// 1.2345671E+000 1.234567
// 1.2345670E+012 1234567000000
// 1.2345678E+028 12345680000000000000000000000
// 1.2345678E+030 OverflowException
' Example of the explicit conversion from Single to Decimal.
Module DecimalFromSingleDemo
Const formatter As String = "{0,16:E7}{1,33}"
' Get the exception type name; remove the namespace prefix.
Function GetExceptionType( ex As Exception ) As String
Dim exceptionType As String = ex.GetType( ).ToString( )
Return exceptionType.Substring( _
exceptionType.LastIndexOf( "."c ) + 1 )
End Function
' Convert the Single argument; catch exceptions that are thrown.
Sub DecimalFromSingle( argument As Single )
Dim decValue As Object
' Convert the Single argument to a Decimal value.
Try
decValue = Decimal.op_Explicit( argument )
Catch ex As Exception
decValue = GetExceptionType( ex )
End Try
' Display the Decimal.
Console.WriteLine( formatter, argument, decValue )
End Sub
Sub Main( )
Console.WriteLine( _
"This example of the explicit conversion from Single " & _
"to Decimal " & vbCrLf & "generates the following " & _
"output." & vbCrLf )
Console.WriteLine( formatter, "Single argument", _
"Decimal value" )
Console.WriteLine( formatter, "---------------", _
"-------------" )
' Convert Single values and display the results.
DecimalFromSingle( 1.2345E-30 )
DecimalFromSingle( 1.2345E-26 )
DecimalFromSingle( 1.23456E-22 )
DecimalFromSingle( 1.23456E-12 )
DecimalFromSingle( 1.234567 )
DecimalFromSingle( 1.234567E+12 )
DecimalFromSingle( 1.2345678E+28 )
DecimalFromSingle( 1.2345678E+30 )
End Sub
End Module
' This example of the explicit conversion from Single to Decimal
' generates the following output.
'
' Single argument Decimal value
' --------------- -------------
' 1.2345000E-030 0
' 1.2345000E-026 0.0000000000000000000000000123
' 1.2345600E-022 0.000000000000000000000123456
' 1.2345600E-012 0.00000000000123456
' 1.2345671E+000 1.234567
' 1.2345670E+012 1234567000000
' 1.2345678E+028 12345680000000000000000000000
' 1.2345678E+030 OverflowException
Viz také
Platí pro
Explicit(Double to Decimal)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Definuje explicitní převod čísla s plovoucí desetinou čárkou s dvojitou přesností Decimalna .
public:
static explicit operator System::Decimal(double value);
public static explicit operator decimal (double value);
static member op_Explicit : double -> decimal
Public Shared Narrowing Operator CType (value As Double) As Decimal
Parametry
- value
- Double
Číslo s plovoucí desetinnou čárkou a dvojitou přesností pro převod.
Návraty
Převedené číslo s plovoucí desetinou čárkou s dvojitou přesností
Výjimky
value
je větší než Decimal.MaxValue nebo menší než Decimal.MinValue.
-nebo-
value
je NaN, PositiveInfinitynebo NegativeInfinity.
Příklady
Následující příklad převede Double hodnoty na Decimal čísla pomocí operátoru do Decimal převoduDouble. Tento převod vyžaduje operátor op_Explicit v jazyce Visual Basic.
// Example of the explicit conversion from double to Decimal.
using namespace System;
#define formatter "{0,25:E16}{1,33}"
// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
String^ exceptionType = ex->GetType()->ToString();
return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}
// Convert the double argument; catch exceptions that are thrown.
void DecimalFromDouble( double argument )
{
Object^ decValue;
// Convert the double argument to a Decimal value.
try
{
decValue = (Decimal)argument;
}
catch ( Exception^ ex )
{
decValue = GetExceptionType( ex );
}
Console::WriteLine( formatter, argument, decValue );
}
int main()
{
Console::WriteLine( "This example of the explicit conversion from double "
"to Decimal \ngenerates the following output.\n" );
Console::WriteLine( formatter, "double argument", "Decimal value" );
Console::WriteLine( formatter, "---------------", "-------------" );
// Convert double values and display the results.
DecimalFromDouble( 1.234567890123E-30 );
DecimalFromDouble( 1.2345678901234E-25 );
DecimalFromDouble( 1.23456789012345E-20 );
DecimalFromDouble( 1.234567890123456E-10 );
DecimalFromDouble( 1.2345678901234567 );
DecimalFromDouble( 1.23456789012345678E+12 );
DecimalFromDouble( 1.234567890123456789E+28 );
DecimalFromDouble( 1.234567890123456789E+30 );
}
/*
This example of the explicit conversion from double to Decimal
generates the following output.
double argument Decimal value
--------------- -------------
1.2345678901230000E-030 0
1.2345678901233999E-025 0.0000000000000000000000001235
1.2345678901234499E-020 0.0000000000000000000123456789
1.2345678901234560E-010 0.000000000123456789012346
1.2345678901234567E+000 1.23456789012346
1.2345678901234568E+012 1234567890123.46
1.2345678901234568E+028 12345678901234600000000000000
1.2345678901234569E+030 OverflowException
*/
// Example of the explicit conversion from double to decimal.
using System;
class DecimalFromDoubleDemo
{
const string formatter = "{0,25:E16}{1,33}";
// Get the exception type name; remove the namespace prefix.
public static string GetExceptionType( Exception ex )
{
string exceptionType = ex.GetType( ).ToString( );
return exceptionType.Substring(
exceptionType.LastIndexOf( '.' ) + 1 );
}
// Convert the double argument; catch exceptions that are thrown.
public static void DecimalFromDouble( double argument )
{
object decValue;
// Convert the double argument to a decimal value.
try
{
decValue = (decimal)argument;
}
catch( Exception ex )
{
decValue = GetExceptionType( ex );
}
Console.WriteLine( formatter, argument, decValue );
}
public static void Main( )
{
Console.WriteLine(
"This example of the explicit conversion from double " +
"to decimal \ngenerates the following output.\n" );
Console.WriteLine( formatter, "double argument",
"decimal value" );
Console.WriteLine( formatter, "---------------",
"-------------" );
// Convert double values and display the results.
DecimalFromDouble( 1.234567890123E-30 );
DecimalFromDouble( 1.2345678901234E-25 );
DecimalFromDouble( 1.23456789012345E-20 );
DecimalFromDouble( 1.234567890123456E-10 );
DecimalFromDouble( 1.2345678901234567 );
DecimalFromDouble( 1.23456789012345678E+12 );
DecimalFromDouble( 1.234567890123456789E+28 );
DecimalFromDouble( 1.234567890123456789E+30 );
}
}
/*
This example of the explicit conversion from double to decimal
generates the following output.
double argument decimal value
--------------- -------------
1.2345678901230000E-030 0
1.2345678901233999E-025 0.0000000000000000000000001235
1.2345678901234499E-020 0.0000000000000000000123456789
1.2345678901234560E-010 0.000000000123456789012346
1.2345678901234567E+000 1.23456789012346
1.2345678901234568E+012 1234567890123.46
1.2345678901234568E+028 12345678901234600000000000000
1.2345678901234569E+030 OverflowException
*/
// Example of the explicit conversion from double to decimal.
let print obj1 obj2 = printfn $"{obj1,25:E16}{obj2,33}"
// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
let exceptionType = ex.GetType() |> string
exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)
// Convert the double argument; catch exceptions that are thrown.
let decimalFromDouble (argument: double) =
// Convert the double argument to a decimal value.
try
decimal argument
|> print argument
with ex ->
getExceptionType ex
|> print argument
printfn "This example of the explicit conversion from double to decimal \ngenerates the following output.\n"
print "double argument" "decimal value"
print "---------------" "-------------"
// Convert double values and display the results.
decimalFromDouble 1.234567890123E-30
decimalFromDouble 1.2345678901234E-25
decimalFromDouble 1.23456789012345E-20
decimalFromDouble 1.234567890123456E-10
decimalFromDouble 1.2345678901234567
decimalFromDouble 1.23456789012345678E+12
decimalFromDouble 1.234567890123456789E+28
decimalFromDouble 1.234567890123456789E+30
// This example of the explicit conversion from double to decimal
// generates the following output.
// double argument decimal value
// --------------- -------------
// 1.2345678901230000E-030 0
// 1.2345678901233999E-025 0.0000000000000000000000001235
// 1.2345678901234499E-020 0.0000000000000000000123456789
// 1.2345678901234560E-010 0.000000000123456789012346
// 1.2345678901234567E+000 1.23456789012346
// 1.2345678901234568E+012 1234567890123.46
// 1.2345678901234568E+028 12345678901234600000000000000
// 1.2345678901234569E+030 OverflowException
' Example of the explicit conversion from Double to Decimal.
Module DecimalFromDoubleDemo
Const formatter As String = "{0,25:E16}{1,33}"
' Get the exception type name; remove the namespace prefix.
Function GetExceptionType( ex As Exception ) As String
Dim exceptionType As String = ex.GetType( ).ToString( )
Return exceptionType.Substring( _
exceptionType.LastIndexOf( "."c ) + 1 )
End Function
' Convert the Double argument; catch exceptions that are thrown.
Sub DecimalFromDouble( argument As Double )
Dim decValue As Object
' Convert the Double argument to a Decimal value.
Try
decValue = Decimal.op_Explicit( argument )
Catch ex As Exception
decValue = GetExceptionType( ex )
End Try
' Display the Decimal.
Console.WriteLine( formatter, argument, decValue )
End Sub
Sub Main( )
Console.WriteLine( _
"This example of the explicit conversion from Double " & _
"to Decimal " & vbCrLf & "generates the following " & _
"output." & vbCrLf )
Console.WriteLine( formatter, "Double argument", _
"Decimal value" )
Console.WriteLine( formatter, "---------------", _
"-------------" )
' Convert Double values and display the results.
DecimalFromDouble( 1.234567890123E-30 )
DecimalFromDouble( 1.2345678901234E-25 )
DecimalFromDouble( 1.23456789012345E-20 )
DecimalFromDouble( 1.234567890123456E-10 )
DecimalFromDouble( 1.2345678901234567 )
DecimalFromDouble( 1.23456789012345678E+12 )
DecimalFromDouble( 1.234567890123456789E+28 )
DecimalFromDouble( 1.234567890123456789E+30 )
End Sub
End Module
' This example of the explicit conversion from Double to Decimal
' generates the following output.
'
' Double argument Decimal value
' --------------- -------------
' 1.2345678901230000E-030 0
' 1.2345678901233999E-025 0.0000000000000000000000001235
' 1.2345678901234499E-020 0.0000000000000000000123456789
' 1.2345678901234560E-010 0.000000000123456789012346
' 1.2345678901234567E+000 1.23456789012346
' 1.2345678901234568E+012 1234567890123.46
' 1.2345678901234568E+028 12345678901234600000000000000
' 1.2345678901234569E+030 OverflowException
Viz také
Platí pro
Explicit(Decimal to UInt64)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Důležité
Toto rozhraní API neodpovídá specifikaci CLS.
Definuje explicitní převod Decimal čísla na 64bitové celé číslo bez znaménka.
Toto rozhraní API neodpovídá specifikaci CLS.
public:
static explicit operator System::UInt64(System::Decimal value);
[System.CLSCompliant(false)]
public static explicit operator ulong (decimal value);
[<System.CLSCompliant(false)>]
static member op_Explicit : decimal -> uint64
Public Shared Narrowing Operator CType (value As Decimal) As ULong
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
64bitové celé číslo bez znaménka, které představuje převedené Decimal.
- Atributy
Výjimky
value
je záporná nebo větší než UInt64.MaxValue.
Příklady
Následující příklad převede Decimal čísla na UInt64 hodnoty pomocí explicitního Decimal operátoru na UInt64 převod.
// Example of the explicit conversions from Decimal to __int64 and
// Decimal to unsigned __int64.
using namespace System;
#define formatter "{0,25}{1,22}{2,22}"
// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
String^ exceptionType = ex->GetType()->ToString();
return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}
// Convert the Decimal argument; catch exceptions that are thrown.
void DecimalToU_Int64( Decimal argument )
{
Object^ Int64Value;
Object^ UInt64Value;
// Convert the argument to an __int64 value.
try
{
Int64Value = (__int64)argument;
}
catch ( Exception^ ex )
{
Int64Value = GetExceptionType( ex );
}
// Convert the argument to an unsigned __int64 value.
try
{
UInt64Value = (unsigned __int64)argument;
}
catch ( Exception^ ex )
{
UInt64Value = GetExceptionType( ex );
}
Console::WriteLine( formatter, argument, Int64Value, UInt64Value );
}
int main()
{
Console::WriteLine( "This example of the explicit conversions from Decimal to "
"__int64 \nand Decimal to unsigned __int64 generates the "
"following output. \nIt displays several converted Decimal "
"values.\n" );
Console::WriteLine( formatter, "Decimal argument", "__int64", "unsigned __int64" );
Console::WriteLine( formatter, "----------------", "-------", "----------------" );
// Convert Decimal values and display the results.
DecimalToU_Int64( Decimal::Parse( "123" ) );
DecimalToU_Int64( Decimal(123000,0,0,false,3) );
DecimalToU_Int64( Decimal::Parse( "123.999" ) );
DecimalToU_Int64( Decimal::Parse( "18446744073709551615.999" ) );
DecimalToU_Int64( Decimal::Parse( "18446744073709551616" ) );
DecimalToU_Int64( Decimal::Parse( "9223372036854775807.999" ) );
DecimalToU_Int64( Decimal::Parse( "9223372036854775808" ) );
DecimalToU_Int64( Decimal::Parse( "-0.999" ) );
DecimalToU_Int64( Decimal::Parse( "-1" ) );
DecimalToU_Int64( Decimal::Parse( "-9223372036854775808.999" ) );
DecimalToU_Int64( Decimal::Parse( "-9223372036854775809" ) );
}
/*
This example of the explicit conversions from Decimal to __int64
and Decimal to unsigned __int64 generates the following output.
It displays several converted Decimal values.
Decimal argument __int64 unsigned __int64
---------------- ------- ----------------
123 123 123
123.000 123 123
123.999 123 123
18446744073709551615.999 OverflowException 18446744073709551615
18446744073709551616 OverflowException OverflowException
9223372036854775807.999 9223372036854775807 9223372036854775807
9223372036854775808 OverflowException 9223372036854775808
-0.999 0 0
-1 -1 OverflowException
-9223372036854775808.999 -9223372036854775808 OverflowException
-9223372036854775809 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to long and
// decimal to ulong.
using System;
class DecimalToU_Int64Demo
{
const string formatter = "{0,25}{1,22}{2,22}";
// Get the exception type name; remove the namespace prefix.
public static string GetExceptionType( Exception ex )
{
string exceptionType = ex.GetType( ).ToString( );
return exceptionType.Substring(
exceptionType.LastIndexOf( '.' ) + 1 );
}
// Convert the decimal argument; catch exceptions that are thrown.
public static void DecimalToU_Int64( decimal argument )
{
object Int64Value;
object UInt64Value;
// Convert the argument to a long value.
try
{
Int64Value = (long)argument;
}
catch( Exception ex )
{
Int64Value = GetExceptionType( ex );
}
// Convert the argument to a ulong value.
try
{
UInt64Value = (ulong)argument;
}
catch( Exception ex )
{
UInt64Value = GetExceptionType( ex );
}
Console.WriteLine( formatter, argument,
Int64Value, UInt64Value );
}
public static void Main( )
{
Console.WriteLine(
"This example of the explicit conversions from decimal " +
"to long \nand decimal to ulong generates the following " +
"output. It displays \nseveral converted decimal " +
"values.\n" );
Console.WriteLine( formatter, "decimal argument",
"long/exception", "ulong/exception" );
Console.WriteLine( formatter, "----------------",
"--------------", "---------------" );
// Convert decimal values and display the results.
DecimalToU_Int64( 123M );
DecimalToU_Int64( new decimal( 123000, 0, 0, false, 3 ) );
DecimalToU_Int64( 123.999M );
DecimalToU_Int64( 18446744073709551615.999M );
DecimalToU_Int64( 18446744073709551616M );
DecimalToU_Int64( 9223372036854775807.999M );
DecimalToU_Int64( 9223372036854775808M );
DecimalToU_Int64( - 0.999M );
DecimalToU_Int64( - 1M );
DecimalToU_Int64( - 9223372036854775808.999M );
DecimalToU_Int64( - 9223372036854775809M );
}
}
/*
This example of the explicit conversions from decimal to long
and decimal to ulong generates the following output. It displays
several converted decimal values.
decimal argument long/exception ulong/exception
---------------- -------------- ---------------
123 123 123
123.000 123 123
123.999 123 123
18446744073709551615.999 OverflowException 18446744073709551615
18446744073709551616 OverflowException OverflowException
9223372036854775807.999 9223372036854775807 9223372036854775807
9223372036854775808 OverflowException 9223372036854775808
-0.999 0 0
-1 -1 OverflowException
-9223372036854775808.999 -9223372036854775808 OverflowException
-9223372036854775809 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to long and
// decimal to ulong.
let print obj1 obj2 obj3 = printfn $"{obj1,25}{obj2,22}{obj3,22}"
// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
let exceptionType = ex.GetType() |> string
exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)
// Convert the decimal argument; catch exceptions that are thrown.
let decimalToU_Int64 (argument: decimal) =
let int32Value: obj =
// Convert the argument to a int64 value.
try
int32 argument
with ex -> getExceptionType ex
let uint32Value: obj =
// Convert the argument to a uint64 value.
try
uint32 argument
with ex -> getExceptionType ex
print argument int32Value uint32Value
printfn "This example of the explicit conversions from decimal to long\nand decimal to ulong generates the following output. It displays\nseveral converted decimal values.\n"
print "decimal argument" "long/exception" "ulong/exception"
print "----------------" "--------------" "---------------"
// Convert decimal values and display the results.
decimalToU_Int64 123M
decimalToU_Int64 (new decimal(123000, 0, 0, false, 3uy))
decimalToU_Int64 123.999M
decimalToU_Int64 18446744073709551615.999M
decimalToU_Int64 18446744073709551616M
decimalToU_Int64 9223372036854775807.999M
decimalToU_Int64 9223372036854775808M
decimalToU_Int64 -0.999M
decimalToU_Int64 -1M
decimalToU_Int64 -9223372036854775808.999M
decimalToU_Int64 -9223372036854775809M
// This example of the explicit conversions from decimal to long
// and decimal to ulong generates the following output. It displays
// several converted decimal values.
//
// decimal argument long/exception ulong/exception
// ---------------- -------------- ---------------
// 123 123 123
// 123.000 123 123
// 123.999 123 123
// 18446744073709551615.999 OverflowException 18446744073709551615
// 18446744073709551616 OverflowException OverflowException
// 9223372036854775807.999 9223372036854775807 9223372036854775807
// 9223372036854775808 OverflowException 9223372036854775808
// -0.999 0 0
// -1 -1 OverflowException
// -9223372036854775808.999 -9223372036854775808 OverflowException
// -9223372036854775809 OverflowException OverflowException
' Example of the explicit conversions from Decimal to Long and
' Decimal to ULong.
Module DecimalToU_Int64Demo
Const formatter As String = "{0,25}{1,22}{2,22}"
' Convert the decimal argument catch exceptions that are thrown.
Public Sub DecimalToU_Int64(argument As Decimal)
Dim Int64Value As Object
Dim UInt64Value As Object
' Convert the argument to a long value.
Try
Int64Value = CLng(argument)
Catch ex As Exception
Int64Value = ex.GetType().Name
End Try
' Convert the argument to a ulong value.
Try
UInt64Value = CULng(argument)
Catch ex As Exception
UInt64Value = ex.GetType().Name
End Try
Console.WriteLine(formatter, argument, _
Int64Value, UInt64Value)
End Sub
Public Sub Main( )
Console.WriteLine( formatter, "Decimal argument", _
"Long/Exception", "ULong/Exception" )
Console.WriteLine( formatter, "----------------", _
"--------------", "---------------" )
' Convert decimal values and display the results.
DecimalToU_Int64(123d)
DecimalToU_Int64(New Decimal(123000, 0, 0, False, 3))
DecimalToU_Int64(123.999d)
DecimalToU_Int64(18446744073709551615.999d)
DecimalToU_Int64(18446744073709551616d)
DecimalToU_Int64(9223372036854775807.999d)
DecimalToU_Int64(9223372036854775808d)
DecimalToU_Int64(-0.999d)
DecimalToU_Int64(-1d)
DecimalToU_Int64(-9223372036854775808.999d)
DecimalToU_Int64(-9223372036854775809d)
End Sub
End Module
' The example displays the following output to the console:
' Decimal argument Long/Exception ULong/Exception
' ---------------- -------------- ---------------
' 123 123 123
' 123.000 123 123
' 123.999 124 124
' 18446744073709551615.999 OverflowException OverflowException
' 18446744073709551616 OverflowException OverflowException
' 9223372036854775807.999 OverflowException 9223372036854775808
' 9223372036854775808 OverflowException 9223372036854775808
' -0.999 -1 OverflowException
' -1 -1 OverflowException
' -9223372036854775808.999 OverflowException OverflowException
' -9223372036854775809 OverflowException OverflowException
Poznámky
Tento operátor podporuje explicitní převod na DecimalUInt64. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty, když explicitně převedete Decimal hodnotu na UInt64 hodnotu pomocí jazyka C# a Visual Basic. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToUInt64(Decimal)Convert.ToUInt64(Decimal) nebo.
Viz také
Platí pro
Explicit(Decimal to UInt32)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Důležité
Toto rozhraní API neodpovídá specifikaci CLS.
- Alternativa odpovídající specifikaci CLS
- System.Decimal.ToInt64(Decimal)
Definuje explicitní převod Decimal čísla na 32bitové celé číslo bez znaménka.
Toto rozhraní API neodpovídá specifikaci CLS.
public:
static explicit operator System::UInt32(System::Decimal value);
[System.CLSCompliant(false)]
public static explicit operator uint (decimal value);
[<System.CLSCompliant(false)>]
static member op_Explicit : decimal -> uint32
Public Shared Narrowing Operator CType (value As Decimal) As UInteger
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
32bitové celé číslo bez znaménka, které představuje převedené Decimal.
- Atributy
Výjimky
value
je menší než UInt32.MinValue nebo větší než UInt32.MaxValue.
Příklady
Následující příklad převede Decimal čísla na UInt32 hodnoty pomocí explicitního Decimal operátoru na UInt32 převod.
// Example of the explicit conversions from Decimal to int and
// Decimal to unsigned int.
using namespace System;
#define formatter "{0,17}{1,19}{2,19}"
// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
String^ exceptionType = ex->GetType()->ToString();
return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}
// Convert the Decimal argument; catch exceptions that are thrown.
void DecimalToU_Int32( Decimal argument )
{
Object^ Int32Value;
Object^ UInt32Value;
// Convert the argument to an int value.
try
{
Int32Value = (int)argument;
}
catch ( Exception^ ex )
{
Int32Value = GetExceptionType( ex );
}
// Convert the argument to an unsigned int value.
try
{
UInt32Value = (unsigned int)argument;
}
catch ( Exception^ ex )
{
UInt32Value = GetExceptionType( ex );
}
Console::WriteLine( formatter, argument, Int32Value, UInt32Value );
}
int main()
{
Console::WriteLine( "This example of the explicit conversions from Decimal to "
"int \nand Decimal to unsigned int generates the "
"following output. \nIt displays several converted Decimal "
"values.\n" );
Console::WriteLine( formatter, "Decimal argument", "int", "unsigned int" );
Console::WriteLine( formatter, "----------------", "---", "------------" );
// Convert Decimal values and display the results.
DecimalToU_Int32( Decimal::Parse( "123" ) );
DecimalToU_Int32( Decimal(123000,0,0,false,3) );
DecimalToU_Int32( Decimal::Parse( "123.999" ) );
DecimalToU_Int32( Decimal::Parse( "4294967295.999" ) );
DecimalToU_Int32( Decimal::Parse( "4294967296" ) );
DecimalToU_Int32( Decimal::Parse( "2147483647.999" ) );
DecimalToU_Int32( Decimal::Parse( "2147483648" ) );
DecimalToU_Int32( Decimal::Parse( "-0.999" ) );
DecimalToU_Int32( Decimal::Parse( "-1" ) );
DecimalToU_Int32( Decimal::Parse( "-2147483648.999" ) );
DecimalToU_Int32( Decimal::Parse( "-2147483649" ) );
}
/*
This example of the explicit conversions from Decimal to int
and Decimal to unsigned int generates the following output.
It displays several converted Decimal values.
Decimal argument int unsigned int
---------------- --- ------------
123 123 123
123.000 123 123
123.999 123 123
4294967295.999 OverflowException 4294967295
4294967296 OverflowException OverflowException
2147483647.999 2147483647 2147483647
2147483648 OverflowException 2147483648
-0.999 0 0
-1 -1 OverflowException
-2147483648.999 -2147483648 OverflowException
-2147483649 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to int and
// decimal to uint.
using System;
class DecimalToU_Int32Demo
{
const string formatter = "{0,17}{1,19}{2,19}";
// Get the exception type name; remove the namespace prefix.
public static string GetExceptionType( Exception ex )
{
string exceptionType = ex.GetType( ).ToString( );
return exceptionType.Substring(
exceptionType.LastIndexOf( '.' ) + 1 );
}
// Convert the decimal argument; catch exceptions that are thrown.
public static void DecimalToU_Int32( decimal argument )
{
object Int32Value;
object UInt32Value;
// Convert the argument to an int value.
try
{
Int32Value = (int)argument;
}
catch( Exception ex )
{
Int32Value = GetExceptionType( ex );
}
// Convert the argument to a uint value.
try
{
UInt32Value = (uint)argument;
}
catch( Exception ex )
{
UInt32Value = GetExceptionType( ex );
}
Console.WriteLine( formatter, argument,
Int32Value, UInt32Value );
}
public static void Main( )
{
Console.WriteLine(
"This example of the explicit conversions from decimal " +
"to int \nand decimal to uint generates the following " +
"output. It displays \nseveral converted decimal " +
"values.\n" );
Console.WriteLine( formatter, "decimal argument",
"int/exception", "uint/exception" );
Console.WriteLine( formatter, "----------------",
"-------------", "--------------" );
// Convert decimal values and display the results.
DecimalToU_Int32( 123M );
DecimalToU_Int32( new decimal( 123000, 0, 0, false, 3 ) );
DecimalToU_Int32( 123.999M );
DecimalToU_Int32( 4294967295.999M );
DecimalToU_Int32( 4294967296M );
DecimalToU_Int32( 2147483647.999M );
DecimalToU_Int32( 2147483648M );
DecimalToU_Int32( - 0.999M );
DecimalToU_Int32( - 1M );
DecimalToU_Int32( - 2147483648.999M );
DecimalToU_Int32( - 2147483649M );
}
}
/*
This example of the explicit conversions from decimal to int
and decimal to uint generates the following output. It displays
several converted decimal values.
decimal argument int/exception uint/exception
---------------- ------------- --------------
123 123 123
123.000 123 123
123.999 123 123
4294967295.999 OverflowException 4294967295
4294967296 OverflowException OverflowException
2147483647.999 2147483647 2147483647
2147483648 OverflowException 2147483648
-0.999 0 0
-1 -1 OverflowException
-2147483648.999 -2147483648 OverflowException
-2147483649 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to int and
// decimal to uint.
let print obj1 obj2 obj3 = printfn $"{obj1,17}{obj2,19}{obj3,19}"
// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
let exceptionType = ex.GetType() |> string
exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)
// Convert the decimal argument; catch exceptions that are thrown.
let decimalToU_Int32 (argument: decimal) =
let int32Value: obj =
// Convert the argument to a int32 value.
try
int32 argument
with ex -> getExceptionType ex
let uint32Value: obj =
// Convert the argument to a uint32 value.
try
uint32 argument
with ex -> getExceptionType ex
print argument int32Value uint32Value
printfn "This example of the explicit conversions from decimal to int\nand decimal to uint generates the following output. It displays\nseveral converted decimal values.\n"
print "decimal argument" "int/exception" "uint/exception"
print "----------------" "-------------" "--------------"
// Convert decimal values and display the results.
decimalToU_Int32 123M
decimalToU_Int32 (new decimal(123000, 0, 0, false, 3uy))
decimalToU_Int32 123.999M
decimalToU_Int32 4294967295.999M
decimalToU_Int32 4294967296M
decimalToU_Int32 2147483647.999M
decimalToU_Int32 2147483648M
decimalToU_Int32 -0.999M
decimalToU_Int32 -1M
decimalToU_Int32 -2147483648.999M
decimalToU_Int32 -2147483649M
// This example of the explicit conversions from decimal to int
// and decimal to uint generates the following output. It displays
// several converted decimal values.
//
// decimal argument int/exception uint/exception
// ---------------- ------------- --------------
// 123 123 123
// 123.000 123 123
// 123.999 123 123
// 4294967295.999 OverflowException 4294967295
// 4294967296 OverflowException OverflowException
// 2147483647.999 2147483647 2147483647
// 2147483648 OverflowException 2147483648
// -0.999 0 0
// -1 -1 OverflowException
// -2147483648.999 -2147483648 OverflowException
// -2147483649 OverflowException OverflowException
' Example of the explicit conversions from Decimal to Integer and
' Decimal to UInteger.
Module DecimalToU_Int32Demo
Const formatter As String = "{0,17}{1,19}{2,19}"
' Convert the decimal argument catch exceptions that are thrown.
Public Sub DecimalToU_Int32(argument As Decimal)
Dim Int32Value As Object
Dim UInt32Value As Object
' Convert the argument to an int value.
Try
Int32Value = CInt(argument)
Catch ex As Exception
Int32Value = ex.GetType().Name
End Try
' Convert the argument to a uint value.
Try
UInt32Value = CUInt(argument)
Catch ex As Exception
UInt32Value = ex.GetType().Name
End Try
Console.WriteLine(formatter, argument, _
Int32Value, UInt32Value)
End Sub
Public Sub Main( )
Console.WriteLine( formatter, "Decimal Argument", _
"Integer/Exception", "UInteger/Exception" )
Console.WriteLine( formatter, "----------------", _
"-------------", "--------------" )
' Convert decimal values and display the results.
DecimalToU_Int32( 123d)
DecimalToU_Int32(New Decimal(123000, 0, 0, False, 3))
DecimalToU_Int32(123.999d)
DecimalToU_Int32(4294967295.999d)
DecimalToU_Int32(4294967296d)
DecimalToU_Int32(2147483647.999d)
DecimalToU_Int32(2147483648d)
DecimalToU_Int32(-0.999d)
DecimalToU_Int32(-1d)
DecimalToU_Int32(-2147483648.999d)
DecimalToU_Int32(-2147483649d)
End Sub
End Module
' The example displays the following output to the console:
' Decimal Argument Integer/Exception UInteger/Exception
' ---------------- ------------- --------------
' 123 123 123
' 123.000 123 123
' 123.999 124 124
' 4294967295.999 OverflowException OverflowException
' 4294967296 OverflowException OverflowException
' 2147483647.999 OverflowException 2147483648
' 2147483648 OverflowException 2147483648
' -0.999 -1 OverflowException
' -1 -1 OverflowException
' -2147483648.999 OverflowException OverflowException
' -2147483649 OverflowException OverflowException
Poznámky
Tento operátor podporuje explicitní převod na DecimalUInt32. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty, když explicitně převedete Decimal hodnotu na UInt32 hodnotu pomocí jazyka C# a Visual Basic. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToUInt32(Decimal)Convert.ToUInt32(Decimal) nebo.
Viz také
Platí pro
Explicit(Decimal to UInt16)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Důležité
Toto rozhraní API neodpovídá specifikaci CLS.
Definuje explicitní převod Decimal čísla na 16bitové celé číslo bez znaménka.
Toto rozhraní API neodpovídá specifikaci CLS.
public:
static explicit operator System::UInt16(System::Decimal value);
[System.CLSCompliant(false)]
public static explicit operator ushort (decimal value);
[<System.CLSCompliant(false)>]
static member op_Explicit : decimal -> uint16
Public Shared Narrowing Operator CType (value As Decimal) As UShort
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
16bitové celé číslo bez znaménka, které představuje převedené Decimal.
- Atributy
Výjimky
value
je menší než UInt16.MinValue nebo větší než UInt16.MaxValue.
Příklady
Následující příklad převede Decimal čísla na UInt16 hodnoty pomocí explicitního Decimal operátoru na UInt16 převod.
// Example of the explicit conversions from Decimal to short and
// Decimal to unsigned short.
using namespace System;
#define formatter "{0,16}{1,19}{2,19}"
// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
String^ exceptionType = ex->GetType()->ToString();
return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}
// Convert the Decimal argument; catch exceptions that are thrown.
void DecimalToU_Int16( Decimal argument )
{
Object^ Int16Value;
Object^ UInt16Value;
// Convert the argument to a short value.
try
{
Int16Value = (short)argument;
}
catch ( Exception^ ex )
{
Int16Value = GetExceptionType( ex );
}
// Convert the argument to an unsigned short value.
try
{
UInt16Value = (unsigned short)argument;
}
catch ( Exception^ ex )
{
UInt16Value = GetExceptionType( ex );
}
Console::WriteLine( formatter, argument, Int16Value, UInt16Value );
}
int main()
{
Console::WriteLine( "This example of the explicit conversions from Decimal to "
"short \nand Decimal to unsigned short generates the "
"following output. \nIt displays several converted Decimal "
"values.\n" );
Console::WriteLine( formatter, "Decimal argument", "short", "unsigned short" );
Console::WriteLine( formatter, "----------------", "-----", "--------------" );
// Convert Decimal values and display the results.
DecimalToU_Int16( Decimal::Parse( "123" ) );
DecimalToU_Int16( Decimal(123000,0,0,false,3) );
DecimalToU_Int16( Decimal::Parse( "123.999" ) );
DecimalToU_Int16( Decimal::Parse( "65535.999" ) );
DecimalToU_Int16( Decimal::Parse( "65536" ) );
DecimalToU_Int16( Decimal::Parse( "32767.999" ) );
DecimalToU_Int16( Decimal::Parse( "32768" ) );
DecimalToU_Int16( Decimal::Parse( "-0.999" ) );
DecimalToU_Int16( Decimal::Parse( "-1" ) );
DecimalToU_Int16( Decimal::Parse( "-32768.999" ) );
DecimalToU_Int16( Decimal::Parse( "-32769" ) );
}
/*
This example of the explicit conversions from Decimal to short
and Decimal to unsigned short generates the following output.
It displays several converted Decimal values.
Decimal argument short unsigned short
---------------- ----- --------------
123 123 123
123.000 123 123
123.999 123 123
65535.999 OverflowException 65535
65536 OverflowException OverflowException
32767.999 32767 32767
32768 OverflowException 32768
-0.999 0 0
-1 -1 OverflowException
-32768.999 -32768 OverflowException
-32769 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to short and
// decimal to ushort.
using System;
class DecimalToU_Int16Demo
{
const string formatter = "{0,16}{1,19}{2,19}";
// Get the exception type name; remove the namespace prefix.
public static string GetExceptionType( Exception ex )
{
string exceptionType = ex.GetType( ).ToString( );
return exceptionType.Substring(
exceptionType.LastIndexOf( '.' ) + 1 );
}
// Convert the decimal argument; catch exceptions that are thrown.
public static void DecimalToU_Int16( decimal argument )
{
object Int16Value;
object UInt16Value;
// Convert the argument to a short value.
try
{
Int16Value = (short)argument;
}
catch( Exception ex )
{
Int16Value = GetExceptionType( ex );
}
// Convert the argument to a ushort value.
try
{
UInt16Value = (ushort)argument;
}
catch( Exception ex )
{
UInt16Value = GetExceptionType( ex );
}
Console.WriteLine( formatter, argument,
Int16Value, UInt16Value );
}
public static void Main( )
{
Console.WriteLine(
"This example of the explicit conversions from decimal " +
"to short \nand decimal to ushort generates the " +
"following output. It displays \nseveral converted " +
"decimal values.\n" );
Console.WriteLine( formatter, "decimal argument",
"short/exception", "ushort/exception" );
Console.WriteLine( formatter, "----------------",
"---------------", "----------------" );
// Convert decimal values and display the results.
DecimalToU_Int16( 123M );
DecimalToU_Int16( new decimal( 123000, 0, 0, false, 3 ) );
DecimalToU_Int16( 123.999M );
DecimalToU_Int16( 65535.999M );
DecimalToU_Int16( 65536M );
DecimalToU_Int16( 32767.999M );
DecimalToU_Int16( 32768M );
DecimalToU_Int16( - 0.999M );
DecimalToU_Int16( - 1M );
DecimalToU_Int16( - 32768.999M );
DecimalToU_Int16( - 32769M );
}
}
/*
This example of the explicit conversions from decimal to short
and decimal to ushort generates the following output. It displays
several converted decimal values.
decimal argument short/exception ushort/exception
---------------- --------------- ----------------
123 123 123
123.000 123 123
123.999 123 123
65535.999 OverflowException 65535
65536 OverflowException OverflowException
32767.999 32767 32767
32768 OverflowException 32768
-0.999 0 0
-1 -1 OverflowException
-32768.999 -32768 OverflowException
-32769 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to short and
// decimal to ushort.
let print obj1 obj2 obj3 =
printfn $"{obj1, 16}{obj2, 19}{obj3, 19}"
// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
let exceptionType = ex.GetType() |> string
exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)
// Convert the decimal argument; catch exceptions that are thrown.
let decimalToU_Int16 (argument: decimal) =
let int16Value: obj =
// Convert the argument to a int16 value.
try
int16 argument
with ex -> getExceptionType ex
let uint16Value: obj =
// Convert the argument to a uint16 value.
try
uint16 argument
with ex -> getExceptionType ex
print argument int16Value uint16Value
printfn "This example of the explicit conversions from decimal to short\nand decimal to ushort generates the following output. It displays \nseveral converted decimal values.\n"
print "decimal argument" "short/exception" "ushort/exception"
print "----------------" "---------------" "----------------"
// Convert decimal values and display the results.
decimalToU_Int16 123M
decimalToU_Int16 (new decimal (123000, 0, 0, false, 3uy))
decimalToU_Int16 123.999M
decimalToU_Int16 65535.999M
decimalToU_Int16 65536M
decimalToU_Int16 32767.999M
decimalToU_Int16 32768M
decimalToU_Int16 -0.999M
decimalToU_Int16 -1M
decimalToU_Int16 -32768.999M
decimalToU_Int16 -32769M
// This example of the explicit conversions from decimal to short
// and decimal to ushort generates the following output. It displays
// several converted decimal values.
//
// decimal argument short/exception ushort/exception
// ---------------- --------------- ----------------
// 123 123 123
// 123.000 123 123
// 123.999 123 123
// 65535.999 OverflowException 65535
// 65536 OverflowException OverflowException
// 32767.999 32767 32767
// 32768 OverflowException 32768
// -0.999 0 0
// -1 -1 OverflowException
// -32768.999 -32768 OverflowException
// -32769 OverflowException OverflowException
' Example of the explicit conversions from Decimal to Short and
' Decimal to UShort.
Module DecimalToU_Int16Demo
Const formatter As String = "{0,16}{1,19}{2,19}"
' Convert the decimal argument and catch exceptions that are thrown.
Public Sub DecimalToU_Int16(argument As Decimal)
Dim Int16Value As Object
Dim UInt16Value As Object
' Convert the argument to a Short value.
Try
Int16Value = CShort(argument)
Catch ex As Exception
Int16Value = ex.GetType().Name
End Try
' Convert the argument to a UShort value.
Try
UInt16Value = CUShort(argument)
Catch ex As Exception
UInt16Value = ex.GetType().Name
End Try
Console.WriteLine( formatter, argument, _
Int16Value, UInt16Value )
End Sub
Public Sub Main( )
Console.WriteLine( formatter, "Decimal argument", _
"Short/Exception", "UShort/Exception" )
Console.WriteLine( formatter, "----------------", _
"---------------", "----------------" )
' Convert decimal values and display the results.
DecimalToU_Int16(123d)
DecimalToU_Int16(New Decimal( 123000, 0, 0, False, 3 ))
DecimalToU_Int16(123.999d)
DecimalToU_Int16(65535.999d)
DecimalToU_Int16(65536d)
DecimalToU_Int16(32767.999d)
DecimalToU_Int16(32768d)
DecimalToU_Int16(-0.999d)
DecimalToU_Int16(-1d)
DecimalToU_Int16(-32768.999d)
DecimalToU_Int16(-32769d)
End Sub
End Module
' This example displays the following output to the console:
' Decimal argument Short/Exception UShort/Exception
' ---------------- --------------- ----------------
' 123 123 123
' 123.000 123 123
' 123.999 124 124
' 65535.999 OverflowException OverflowException
' 65536 OverflowException OverflowException
' 32767.999 OverflowException 32768
' 32768 OverflowException 32768
' -0.999 -1 OverflowException
' -1 -1 OverflowException
' -32768.999 OverflowException OverflowException
' -32769 OverflowException OverflowException
Poznámky
Tento operátor podporuje explicitní převod na DecimalUInt16. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty, když explicitně převedete Decimal hodnotu na UInt16 hodnotu pomocí jazyka C# a Visual Basic. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToUInt16(Decimal)Convert.ToUInt16(Decimal) nebo.
Viz také
Platí pro
Explicit(Decimal to SByte)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Důležité
Toto rozhraní API neodpovídá specifikaci CLS.
- Alternativa odpovídající specifikaci CLS
- System.Decimal.ToInt16(Decimal)
Definuje explicitní převod čísla Decimal na 8bitové celé číslo se signoumi sadou.
Toto rozhraní API neodpovídá specifikaci CLS.
public:
static explicit operator System::SByte(System::Decimal value);
[System.CLSCompliant(false)]
public static explicit operator sbyte (decimal value);
[<System.CLSCompliant(false)>]
static member op_Explicit : decimal -> sbyte
Public Shared Narrowing Operator CType (value As Decimal) As SByte
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
8bitové celé číslo se signoumm sadou, které představuje převedené Decimalčíslo .
- Atributy
Výjimky
value
je menší než SByte.MinValue nebo větší než SByte.MaxValue.
Příklady
Následující příklad převede Decimal čísla na SByte hodnoty pomocí explicitního Decimal operátoru na SByte převod.
using namespace System;
void main()
{
// Define an array of decimal values.
array<Decimal>^ values = { Decimal::Parse("78"),
Decimal(78000,0,0,false,3),
Decimal::Parse("78.999"),
Decimal::Parse("255.999"),
Decimal::Parse("256"),
Decimal::Parse("127.999"),
Decimal::Parse("128"),
Decimal::Parse("-0.999"),
Decimal::Parse("-1"),
Decimal::Parse("-128.999"),
Decimal::Parse("-129") };
for each (Decimal value in values) {
try {
SByte byteValue = (SByte) value;
Console::WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType()->Name, byteValue,
byteValue.GetType()->Name);
}
catch (OverflowException^ e) {
Console::WriteLine("OverflowException: Cannot convert {0}",
value);
}
}
}
// The example displays the following output:
// 78 (Decimal) --> 78 (SByte)
// 78.000 (Decimal) --> 78 (SByte)
// 78.999 (Decimal) --> 78 (SByte)
// OverflowException: Cannot convert 255.999
// OverflowException: Cannot convert 256
// 127.999 (Decimal) --> 127 (SByte)
// OverflowException: Cannot convert 128
// -0.999 (Decimal) --> 0 (SByte)
// -1 (Decimal) --> -1 (SByte)
// -128.999 (Decimal) --> -128 (SByte)
// OverflowException: Cannot convert -129
using System;
class Example
{
public static void Main()
{
// Define an array of decimal values.
decimal[] values = { 78m, new Decimal(78000, 0, 0, false, 3),
78.999m, 255.999m, 256m, 127.999m,
128m, -0.999m, -1m, -128.999m, -129m };
foreach (var value in values) {
try {
SByte byteValue = (SByte) value;
Console.WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType().Name, byteValue,
byteValue.GetType().Name);
}
catch (OverflowException) {
Console.WriteLine("OverflowException: Cannot convert {0}",
value);
}
}
}
}
// The example displays the following output:
// 78 (Decimal) --> 78 (SByte)
// 78.000 (Decimal) --> 78 (SByte)
// 78.999 (Decimal) --> 78 (SByte)
// OverflowException: Cannot convert 255.999
// OverflowException: Cannot convert 256
// 127.999 (Decimal) --> 127 (SByte)
// OverflowException: Cannot convert 128
// -0.999 (Decimal) --> 0 (SByte)
// -1 (Decimal) --> -1 (SByte)
// -128.999 (Decimal) --> -128 (SByte)
// OverflowException: Cannot convert -129
open System
// Define a list of decimal values.
let values =
[ 78m; Decimal(78000, 0, 0, false, 3uy)
78.999m; 255.999m; 256m; 127.999m
128m; -0.999m; -1m; -128.999m; -129m ]
for value in values do
try
let byteValue = int8 value
printfn $"{value} ({value.GetType().Name}) --> {byteValue} ({byteValue.GetType().Name})"
with :? OverflowException ->
printfn $"OverflowException: Cannot convert {value}"
// The example displays the following output:
// 78 (Decimal) --> 78 (SByte)
// 78.000 (Decimal) --> 78 (SByte)
// 78.999 (Decimal) --> 78 (SByte)
// OverflowException: Cannot convert 255.999
// OverflowException: Cannot convert 256
// 127.999 (Decimal) --> 127 (SByte)
// OverflowException: Cannot convert 128
// -0.999 (Decimal) --> 0 (SByte)
// -1 (Decimal) --> -1 (SByte)
// -128.999 (Decimal) --> -128 (SByte)
// OverflowException: Cannot convert -129
Option Strict On
Module Example
Public Sub Main()
' Define an array of decimal values.
Dim values() As Decimal = { 78d, New Decimal(78000, 0, 0, False, 3),
78.999d, 255.999d, 256d, 127.999d,
128d, -0.999d, -1d, -128.999d,
-129d }
For Each value In values
Try
Dim byteValue As SByte = CSByte(value)
Console.WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType().Name, byteValue,
byteValue.GetType().Name)
Catch e As OverflowException
Console.WriteLine("OverflowException: Cannot convert {0}",
value)
End Try
Next
End Sub
End Module
' The example displays the following output:
' 78 (Decimal) --> 78 (SByte)
' 78.000 (Decimal) --> 78 (SByte)
' 78.999 (Decimal) --> 79 (SByte)
' OverflowException: Cannot convert 255.999
' OverflowException: Cannot convert 256
' OverflowException: Cannot convert 127.999
' OverflowException: Cannot convert 128
' -0.999 (Decimal) --> -1 (SByte)
' -1 (Decimal) --> -1 (SByte)
' OverflowException: Cannot convert -128.999
' OverflowException: Cannot convert -129
Poznámky
Tento operátor podporuje explicitní převod na DecimalSByte. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty, když explicitně převedete Decimal hodnotu na Byte hodnotu a pomocí jazyka SByte C# a Visual Basic. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToSByte(Decimal) nebo metodu Convert.ToSByte(Decimal) .
Viz také
Platí pro
Explicit(Decimal to Single)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Definuje explicitní převod Decimal na číslo s plovoucí desetinou čárkou s jednoduchou přesností.
public:
static explicit operator float(System::Decimal value);
public static explicit operator float (decimal value);
static member op_Explicit : decimal -> single
Public Shared Narrowing Operator CType (value As Decimal) As Single
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
Číslo s plovoucí desetinou čárkou s jednoduchou přesností, které představuje převedenou Decimalhodnotu .
Příklady
Následující příklad převede Decimal čísla na Single hodnoty pomocí explicitního Decimal operátoru na Single převod.
using namespace System;
void main()
{
// Define an array of Decimal values.
array<Decimal>^ values = { Decimal::Parse("0.0000000000000000000000000001"),
Decimal::Parse("0.0000000000123456789123456789"),
Decimal::Parse("123"),
Decimal(123000000, 0, 0, false, 6),
Decimal::Parse("123456789.123456789"),
Decimal::Parse("123456789123456789123456789"),
Decimal::MinValue, Decimal::MaxValue };
// Convert each value to a double.
for each (Decimal value in values) {
float dblValue = (float) value;
Console::WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType()->Name, dblValue,
dblValue.GetType()->Name);
}
}
// The example displays the following output:
// 0.0000000000000000000000000001 (Decimal) --> 1E-28 (Single)
// 0.0000000000123456789123456789 (Decimal) --> 1.234568E-11 (Single)
// 123 (Decimal) --> 123 (Single)
// 123.000000 (Decimal) --> 123 (Single)
// 123456789.123456789 (Decimal) --> 1.234568E+08 (Single)
// 123456789123456789123456789 (Decimal) --> 1.234568E+26 (Single)
// -79228162514264337593543950335 (Decimal) --> -7.922816E+28 (Single)
// 79228162514264337593543950335 (Decimal) --> 7.922816E+28 (Single)
using System;
class Example
{
public static void Main( )
{
// Define an array of decimal values.
decimal[] values = { 0.0000000000000000000000000001M,
0.0000000000123456789123456789M,
123M, new decimal(123000000, 0, 0, false, 6),
123456789.123456789M,
123456789123456789123456789M,
decimal.MinValue, decimal.MaxValue };
// Convert each value to a double.
foreach (var value in values) {
float dblValue = (float) value;
Console.WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType().Name, dblValue,
dblValue.GetType().Name);
}
}
}
// The example displays the following output:
// 0.0000000000000000000000000001 (Decimal) --> 1E-28 (Single)
// 0.0000000000123456789123456789 (Decimal) --> 1.234568E-11 (Single)
// 123 (Decimal) --> 123 (Single)
// 123.000000 (Decimal) --> 123 (Single)
// 123456789.123456789 (Decimal) --> 1.234568E+08 (Single)
// 123456789123456789123456789 (Decimal) --> 1.234568E+26 (Single)
// -79228162514264337593543950335 (Decimal) --> -7.922816E+28 (Single)
// 79228162514264337593543950335 (Decimal) --> 7.922816E+28 (Single)
open System
// Define a list of decimal values.
let values =
[ 0.0000000000000000000000000001M
0.0000000000123456789123456789M
123M; Decimal(123000000, 0, 0, false, 6uy)
123456789.123456789M
123456789123456789123456789M
Decimal.MinValue; Decimal.MaxValue ]
// Convert each value to a double.
for value in values do
let dblValue = float32 value
printfn $"{value} ({value.GetType().Name}) --> {dblValue} ({dblValue.GetType().Name})"
// The example displays the following output:
// 0.0000000000000000000000000001 (Decimal) --> 1E-28 (Single)
// 0.0000000000123456789123456789 (Decimal) --> 1.234568E-11 (Single)
// 123 (Decimal) --> 123 (Single)
// 123.000000 (Decimal) --> 123 (Single)
// 123456789.123456789 (Decimal) --> 1.234568E+08 (Single)
// 123456789123456789123456789 (Decimal) --> 1.234568E+26 (Single)
// -79228162514264337593543950335 (Decimal) --> -7.922816E+28 (Single)
// 79228162514264337593543950335 (Decimal) --> 7.922816E+28 (Single)
Module Example
Public Sub Main( )
' Define an array of Decimal values.
Dim values() As Decimal= { 0.0000000000000000000000000001d,
0.0000000000123456789123456789d,
123d,
New Decimal(123000000, 0, 0, False, 6),
123456789.123456789d,
123456789123456789123456789d,
Decimal.MinValue, Decimal.MaxValue }
For Each value In values
Dim dblValue As Single = CSng(value)
Console.WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType().Name, dblValue,
dblValue.GetType().Name)
Next
End Sub
End Module
' The example displays the following output:
' 0.0000000000000000000000000001 (Decimal) --> 1E-28 (Single)
' 0.0000000000123456789123456789 (Decimal) --> 1.234568E-11 (Single)
' 123 (Decimal) --> 123 (Single)
' 123.000000 (Decimal) --> 123 (Single)
' 123456789.123456789 (Decimal) --> 1.234568E+08 (Single)
' 123456789123456789123456789 (Decimal) --> 1.234568E+26 (Single)
' -79228162514264337593543950335 (Decimal) --> -7.922816E+28 (Single)
' 79228162514264337593543950335 (Decimal) --> 7.922816E+28 (Single)
Poznámky
Tato operace může způsobit ztrátu přesnosti, protože číslo s plovoucí desetinou čárkou s jednou přesností má méně platných číslic než Decimalhodnota .
Tento operátor podporuje explicitní převod na DecimalSingle. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty při explicitním převodu Decimal hodnoty na Single hodnotu pomocí jazyka C# a visual basicu. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToSingle(Decimal)Convert.ToSingle(Decimal) nebo .
Viz také
Platí pro
Explicit(Decimal to Int32)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Definuje explicitní převod objektu Decimal na 32bitové celé číslo se signoumimi sadou.
public:
static explicit operator int(System::Decimal value);
public static explicit operator int (decimal value);
static member op_Explicit : decimal -> int
Public Shared Narrowing Operator CType (value As Decimal) As Integer
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
32bitové celé číslo se signoumhom Decimal
Výjimky
value
je menší než Int32.MinValue nebo větší než Int32.MaxValue.
Příklady
Následující příklad převede Decimal čísla na Int32 hodnoty pomocí operátoru explicitního Decimal převodu na Int32 .
// Example of the explicit conversions from Decimal to int and
// Decimal to unsigned int.
using namespace System;
#define formatter "{0,17}{1,19}{2,19}"
// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
String^ exceptionType = ex->GetType()->ToString();
return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}
// Convert the Decimal argument; catch exceptions that are thrown.
void DecimalToU_Int32( Decimal argument )
{
Object^ Int32Value;
Object^ UInt32Value;
// Convert the argument to an int value.
try
{
Int32Value = (int)argument;
}
catch ( Exception^ ex )
{
Int32Value = GetExceptionType( ex );
}
// Convert the argument to an unsigned int value.
try
{
UInt32Value = (unsigned int)argument;
}
catch ( Exception^ ex )
{
UInt32Value = GetExceptionType( ex );
}
Console::WriteLine( formatter, argument, Int32Value, UInt32Value );
}
int main()
{
Console::WriteLine( "This example of the explicit conversions from Decimal to "
"int \nand Decimal to unsigned int generates the "
"following output. \nIt displays several converted Decimal "
"values.\n" );
Console::WriteLine( formatter, "Decimal argument", "int", "unsigned int" );
Console::WriteLine( formatter, "----------------", "---", "------------" );
// Convert Decimal values and display the results.
DecimalToU_Int32( Decimal::Parse( "123" ) );
DecimalToU_Int32( Decimal(123000,0,0,false,3) );
DecimalToU_Int32( Decimal::Parse( "123.999" ) );
DecimalToU_Int32( Decimal::Parse( "4294967295.999" ) );
DecimalToU_Int32( Decimal::Parse( "4294967296" ) );
DecimalToU_Int32( Decimal::Parse( "2147483647.999" ) );
DecimalToU_Int32( Decimal::Parse( "2147483648" ) );
DecimalToU_Int32( Decimal::Parse( "-0.999" ) );
DecimalToU_Int32( Decimal::Parse( "-1" ) );
DecimalToU_Int32( Decimal::Parse( "-2147483648.999" ) );
DecimalToU_Int32( Decimal::Parse( "-2147483649" ) );
}
/*
This example of the explicit conversions from Decimal to int
and Decimal to unsigned int generates the following output.
It displays several converted Decimal values.
Decimal argument int unsigned int
---------------- --- ------------
123 123 123
123.000 123 123
123.999 123 123
4294967295.999 OverflowException 4294967295
4294967296 OverflowException OverflowException
2147483647.999 2147483647 2147483647
2147483648 OverflowException 2147483648
-0.999 0 0
-1 -1 OverflowException
-2147483648.999 -2147483648 OverflowException
-2147483649 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to int and
// decimal to uint.
using System;
class DecimalToU_Int32Demo
{
const string formatter = "{0,17}{1,19}{2,19}";
// Get the exception type name; remove the namespace prefix.
public static string GetExceptionType( Exception ex )
{
string exceptionType = ex.GetType( ).ToString( );
return exceptionType.Substring(
exceptionType.LastIndexOf( '.' ) + 1 );
}
// Convert the decimal argument; catch exceptions that are thrown.
public static void DecimalToU_Int32( decimal argument )
{
object Int32Value;
object UInt32Value;
// Convert the argument to an int value.
try
{
Int32Value = (int)argument;
}
catch( Exception ex )
{
Int32Value = GetExceptionType( ex );
}
// Convert the argument to a uint value.
try
{
UInt32Value = (uint)argument;
}
catch( Exception ex )
{
UInt32Value = GetExceptionType( ex );
}
Console.WriteLine( formatter, argument,
Int32Value, UInt32Value );
}
public static void Main( )
{
Console.WriteLine(
"This example of the explicit conversions from decimal " +
"to int \nand decimal to uint generates the following " +
"output. It displays \nseveral converted decimal " +
"values.\n" );
Console.WriteLine( formatter, "decimal argument",
"int/exception", "uint/exception" );
Console.WriteLine( formatter, "----------------",
"-------------", "--------------" );
// Convert decimal values and display the results.
DecimalToU_Int32( 123M );
DecimalToU_Int32( new decimal( 123000, 0, 0, false, 3 ) );
DecimalToU_Int32( 123.999M );
DecimalToU_Int32( 4294967295.999M );
DecimalToU_Int32( 4294967296M );
DecimalToU_Int32( 2147483647.999M );
DecimalToU_Int32( 2147483648M );
DecimalToU_Int32( - 0.999M );
DecimalToU_Int32( - 1M );
DecimalToU_Int32( - 2147483648.999M );
DecimalToU_Int32( - 2147483649M );
}
}
/*
This example of the explicit conversions from decimal to int
and decimal to uint generates the following output. It displays
several converted decimal values.
decimal argument int/exception uint/exception
---------------- ------------- --------------
123 123 123
123.000 123 123
123.999 123 123
4294967295.999 OverflowException 4294967295
4294967296 OverflowException OverflowException
2147483647.999 2147483647 2147483647
2147483648 OverflowException 2147483648
-0.999 0 0
-1 -1 OverflowException
-2147483648.999 -2147483648 OverflowException
-2147483649 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to int and
// decimal to uint.
let print obj1 obj2 obj3 = printfn $"{obj1,17}{obj2,19}{obj3,19}"
// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
let exceptionType = ex.GetType() |> string
exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)
// Convert the decimal argument; catch exceptions that are thrown.
let decimalToU_Int32 (argument: decimal) =
let int32Value: obj =
// Convert the argument to a int32 value.
try
int32 argument
with ex -> getExceptionType ex
let uint32Value: obj =
// Convert the argument to a uint32 value.
try
uint32 argument
with ex -> getExceptionType ex
print argument int32Value uint32Value
printfn "This example of the explicit conversions from decimal to int\nand decimal to uint generates the following output. It displays\nseveral converted decimal values.\n"
print "decimal argument" "int/exception" "uint/exception"
print "----------------" "-------------" "--------------"
// Convert decimal values and display the results.
decimalToU_Int32 123M
decimalToU_Int32 (new decimal(123000, 0, 0, false, 3uy))
decimalToU_Int32 123.999M
decimalToU_Int32 4294967295.999M
decimalToU_Int32 4294967296M
decimalToU_Int32 2147483647.999M
decimalToU_Int32 2147483648M
decimalToU_Int32 -0.999M
decimalToU_Int32 -1M
decimalToU_Int32 -2147483648.999M
decimalToU_Int32 -2147483649M
// This example of the explicit conversions from decimal to int
// and decimal to uint generates the following output. It displays
// several converted decimal values.
//
// decimal argument int/exception uint/exception
// ---------------- ------------- --------------
// 123 123 123
// 123.000 123 123
// 123.999 123 123
// 4294967295.999 OverflowException 4294967295
// 4294967296 OverflowException OverflowException
// 2147483647.999 2147483647 2147483647
// 2147483648 OverflowException 2147483648
// -0.999 0 0
// -1 -1 OverflowException
// -2147483648.999 -2147483648 OverflowException
// -2147483649 OverflowException OverflowException
' Example of the explicit conversions from Decimal to Integer and
' Decimal to UInteger.
Module DecimalToU_Int32Demo
Const formatter As String = "{0,17}{1,19}{2,19}"
' Convert the decimal argument catch exceptions that are thrown.
Public Sub DecimalToU_Int32(argument As Decimal)
Dim Int32Value As Object
Dim UInt32Value As Object
' Convert the argument to an int value.
Try
Int32Value = CInt(argument)
Catch ex As Exception
Int32Value = ex.GetType().Name
End Try
' Convert the argument to a uint value.
Try
UInt32Value = CUInt(argument)
Catch ex As Exception
UInt32Value = ex.GetType().Name
End Try
Console.WriteLine(formatter, argument, _
Int32Value, UInt32Value)
End Sub
Public Sub Main( )
Console.WriteLine( formatter, "Decimal Argument", _
"Integer/Exception", "UInteger/Exception" )
Console.WriteLine( formatter, "----------------", _
"-------------", "--------------" )
' Convert decimal values and display the results.
DecimalToU_Int32( 123d)
DecimalToU_Int32(New Decimal(123000, 0, 0, False, 3))
DecimalToU_Int32(123.999d)
DecimalToU_Int32(4294967295.999d)
DecimalToU_Int32(4294967296d)
DecimalToU_Int32(2147483647.999d)
DecimalToU_Int32(2147483648d)
DecimalToU_Int32(-0.999d)
DecimalToU_Int32(-1d)
DecimalToU_Int32(-2147483648.999d)
DecimalToU_Int32(-2147483649d)
End Sub
End Module
' The example displays the following output to the console:
' Decimal Argument Integer/Exception UInteger/Exception
' ---------------- ------------- --------------
' 123 123 123
' 123.000 123 123
' 123.999 124 124
' 4294967295.999 OverflowException OverflowException
' 4294967296 OverflowException OverflowException
' 2147483647.999 OverflowException 2147483648
' 2147483648 OverflowException 2147483648
' -0.999 -1 OverflowException
' -1 -1 OverflowException
' -2147483648.999 OverflowException OverflowException
' -2147483649 OverflowException OverflowException
Poznámky
Tento operátor podporuje explicitní převod objektu na DecimalInt32. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty, když explicitně převedete Decimal hodnotu na Int32 hodnotu pomocí jazyků C#, C++ a Visual Basic. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToInt32(Decimal)Convert.ToInt32(Decimal) nebo .
Viz také
Platí pro
Explicit(Decimal to Int16)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Definuje explicitní převod Decimal na 16bitové celé číslo se signýmm.
public:
static explicit operator short(System::Decimal value);
public static explicit operator short (decimal value);
static member op_Explicit : decimal -> int16
Public Shared Narrowing Operator CType (value As Decimal) As Short
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
16bitové celé číslo se signoumhom Decimal
Výjimky
value
je menší než Int16.MinValue nebo větší než Int16.MaxValue.
Příklady
Následující příklad převede Decimal čísla na Int16 hodnoty pomocí operátoru explicitního Decimal převodu na Int16 .
// Example of the explicit conversions from Decimal to short and
// Decimal to unsigned short.
using namespace System;
#define formatter "{0,16}{1,19}{2,19}"
// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
String^ exceptionType = ex->GetType()->ToString();
return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}
// Convert the Decimal argument; catch exceptions that are thrown.
void DecimalToU_Int16( Decimal argument )
{
Object^ Int16Value;
Object^ UInt16Value;
// Convert the argument to a short value.
try
{
Int16Value = (short)argument;
}
catch ( Exception^ ex )
{
Int16Value = GetExceptionType( ex );
}
// Convert the argument to an unsigned short value.
try
{
UInt16Value = (unsigned short)argument;
}
catch ( Exception^ ex )
{
UInt16Value = GetExceptionType( ex );
}
Console::WriteLine( formatter, argument, Int16Value, UInt16Value );
}
int main()
{
Console::WriteLine( "This example of the explicit conversions from Decimal to "
"short \nand Decimal to unsigned short generates the "
"following output. \nIt displays several converted Decimal "
"values.\n" );
Console::WriteLine( formatter, "Decimal argument", "short", "unsigned short" );
Console::WriteLine( formatter, "----------------", "-----", "--------------" );
// Convert Decimal values and display the results.
DecimalToU_Int16( Decimal::Parse( "123" ) );
DecimalToU_Int16( Decimal(123000,0,0,false,3) );
DecimalToU_Int16( Decimal::Parse( "123.999" ) );
DecimalToU_Int16( Decimal::Parse( "65535.999" ) );
DecimalToU_Int16( Decimal::Parse( "65536" ) );
DecimalToU_Int16( Decimal::Parse( "32767.999" ) );
DecimalToU_Int16( Decimal::Parse( "32768" ) );
DecimalToU_Int16( Decimal::Parse( "-0.999" ) );
DecimalToU_Int16( Decimal::Parse( "-1" ) );
DecimalToU_Int16( Decimal::Parse( "-32768.999" ) );
DecimalToU_Int16( Decimal::Parse( "-32769" ) );
}
/*
This example of the explicit conversions from Decimal to short
and Decimal to unsigned short generates the following output.
It displays several converted Decimal values.
Decimal argument short unsigned short
---------------- ----- --------------
123 123 123
123.000 123 123
123.999 123 123
65535.999 OverflowException 65535
65536 OverflowException OverflowException
32767.999 32767 32767
32768 OverflowException 32768
-0.999 0 0
-1 -1 OverflowException
-32768.999 -32768 OverflowException
-32769 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to short and
// decimal to ushort.
using System;
class DecimalToU_Int16Demo
{
const string formatter = "{0,16}{1,19}{2,19}";
// Get the exception type name; remove the namespace prefix.
public static string GetExceptionType( Exception ex )
{
string exceptionType = ex.GetType( ).ToString( );
return exceptionType.Substring(
exceptionType.LastIndexOf( '.' ) + 1 );
}
// Convert the decimal argument; catch exceptions that are thrown.
public static void DecimalToU_Int16( decimal argument )
{
object Int16Value;
object UInt16Value;
// Convert the argument to a short value.
try
{
Int16Value = (short)argument;
}
catch( Exception ex )
{
Int16Value = GetExceptionType( ex );
}
// Convert the argument to a ushort value.
try
{
UInt16Value = (ushort)argument;
}
catch( Exception ex )
{
UInt16Value = GetExceptionType( ex );
}
Console.WriteLine( formatter, argument,
Int16Value, UInt16Value );
}
public static void Main( )
{
Console.WriteLine(
"This example of the explicit conversions from decimal " +
"to short \nand decimal to ushort generates the " +
"following output. It displays \nseveral converted " +
"decimal values.\n" );
Console.WriteLine( formatter, "decimal argument",
"short/exception", "ushort/exception" );
Console.WriteLine( formatter, "----------------",
"---------------", "----------------" );
// Convert decimal values and display the results.
DecimalToU_Int16( 123M );
DecimalToU_Int16( new decimal( 123000, 0, 0, false, 3 ) );
DecimalToU_Int16( 123.999M );
DecimalToU_Int16( 65535.999M );
DecimalToU_Int16( 65536M );
DecimalToU_Int16( 32767.999M );
DecimalToU_Int16( 32768M );
DecimalToU_Int16( - 0.999M );
DecimalToU_Int16( - 1M );
DecimalToU_Int16( - 32768.999M );
DecimalToU_Int16( - 32769M );
}
}
/*
This example of the explicit conversions from decimal to short
and decimal to ushort generates the following output. It displays
several converted decimal values.
decimal argument short/exception ushort/exception
---------------- --------------- ----------------
123 123 123
123.000 123 123
123.999 123 123
65535.999 OverflowException 65535
65536 OverflowException OverflowException
32767.999 32767 32767
32768 OverflowException 32768
-0.999 0 0
-1 -1 OverflowException
-32768.999 -32768 OverflowException
-32769 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to short and
// decimal to ushort.
let print obj1 obj2 obj3 =
printfn $"{obj1, 16}{obj2, 19}{obj3, 19}"
// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
let exceptionType = ex.GetType() |> string
exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)
// Convert the decimal argument; catch exceptions that are thrown.
let decimalToU_Int16 (argument: decimal) =
let int16Value: obj =
// Convert the argument to a int16 value.
try
int16 argument
with ex -> getExceptionType ex
let uint16Value: obj =
// Convert the argument to a uint16 value.
try
uint16 argument
with ex -> getExceptionType ex
print argument int16Value uint16Value
printfn "This example of the explicit conversions from decimal to short\nand decimal to ushort generates the following output. It displays \nseveral converted decimal values.\n"
print "decimal argument" "short/exception" "ushort/exception"
print "----------------" "---------------" "----------------"
// Convert decimal values and display the results.
decimalToU_Int16 123M
decimalToU_Int16 (new decimal (123000, 0, 0, false, 3uy))
decimalToU_Int16 123.999M
decimalToU_Int16 65535.999M
decimalToU_Int16 65536M
decimalToU_Int16 32767.999M
decimalToU_Int16 32768M
decimalToU_Int16 -0.999M
decimalToU_Int16 -1M
decimalToU_Int16 -32768.999M
decimalToU_Int16 -32769M
// This example of the explicit conversions from decimal to short
// and decimal to ushort generates the following output. It displays
// several converted decimal values.
//
// decimal argument short/exception ushort/exception
// ---------------- --------------- ----------------
// 123 123 123
// 123.000 123 123
// 123.999 123 123
// 65535.999 OverflowException 65535
// 65536 OverflowException OverflowException
// 32767.999 32767 32767
// 32768 OverflowException 32768
// -0.999 0 0
// -1 -1 OverflowException
// -32768.999 -32768 OverflowException
// -32769 OverflowException OverflowException
' Example of the explicit conversions from Decimal to Short and
' Decimal to UShort.
Module DecimalToU_Int16Demo
Const formatter As String = "{0,16}{1,19}{2,19}"
' Convert the decimal argument and catch exceptions that are thrown.
Public Sub DecimalToU_Int16(argument As Decimal)
Dim Int16Value As Object
Dim UInt16Value As Object
' Convert the argument to a Short value.
Try
Int16Value = CShort(argument)
Catch ex As Exception
Int16Value = ex.GetType().Name
End Try
' Convert the argument to a UShort value.
Try
UInt16Value = CUShort(argument)
Catch ex As Exception
UInt16Value = ex.GetType().Name
End Try
Console.WriteLine( formatter, argument, _
Int16Value, UInt16Value )
End Sub
Public Sub Main( )
Console.WriteLine( formatter, "Decimal argument", _
"Short/Exception", "UShort/Exception" )
Console.WriteLine( formatter, "----------------", _
"---------------", "----------------" )
' Convert decimal values and display the results.
DecimalToU_Int16(123d)
DecimalToU_Int16(New Decimal( 123000, 0, 0, False, 3 ))
DecimalToU_Int16(123.999d)
DecimalToU_Int16(65535.999d)
DecimalToU_Int16(65536d)
DecimalToU_Int16(32767.999d)
DecimalToU_Int16(32768d)
DecimalToU_Int16(-0.999d)
DecimalToU_Int16(-1d)
DecimalToU_Int16(-32768.999d)
DecimalToU_Int16(-32769d)
End Sub
End Module
' This example displays the following output to the console:
' Decimal argument Short/Exception UShort/Exception
' ---------------- --------------- ----------------
' 123 123 123
' 123.000 123 123
' 123.999 124 124
' 65535.999 OverflowException OverflowException
' 65536 OverflowException OverflowException
' 32767.999 OverflowException 32768
' 32768 OverflowException 32768
' -0.999 -1 OverflowException
' -1 -1 OverflowException
' -32768.999 OverflowException OverflowException
' -32769 OverflowException OverflowException
Poznámky
Tento operátor podporuje explicitní převod objektu na DecimalInt16. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty, když explicitně převedete Decimal hodnotu na Int16 hodnotu pomocí jazyků C#, Visual Basic a C++. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToInt16(Decimal)Convert.ToInt16(Decimal) nebo .
Viz také
Platí pro
Explicit(Decimal to Double)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Definuje explicitní převod Decimal čísla na číslo s plovoucí desetinou čárkou s dvojitou přesností.
public:
static explicit operator double(System::Decimal value);
public static explicit operator double (decimal value);
static member op_Explicit : decimal -> double
Public Shared Narrowing Operator CType (value As Decimal) As Double
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
Číslo s plovoucí desetinou čárkou s dvojitou přesností, které představuje převedenou Decimalhodnotu .
Příklady
Následující příklad převede Decimal čísla na Double hodnoty pomocí operátoru explicitního Decimal převodu na Double .
using namespace System;
void main()
{
// Define an array of Decimal values.
array<Decimal>^ values = { Decimal::Parse("0.0000000000000000000000000001"),
Decimal::Parse("0.0000000000123456789123456789"),
Decimal::Parse("123"),
Decimal(123000000, 0, 0, false, 6),
Decimal::Parse("123456789.123456789"),
Decimal::Parse("123456789123456789123456789"),
Decimal::MinValue, Decimal::MaxValue };
// Convert each value to a double.
for each (Decimal value in values) {
double dblValue = (double) value;
Console::WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType()->Name, dblValue,
dblValue.GetType()->Name);
}
}
// The example displays the following output:
// 0.0000000000000000000000000001 (Decimal) --> 1E-28 (Double)
// 0.0000000000123456789123456789 (Decimal) --> 1.23456789123457E-11 (Double)
// 123 (Decimal) --> 123 (Double)
// 123.000000 (Decimal) --> 123 (Double)
// 123456789.123456789 (Decimal) --> 123456789.123457 (Double)
// 123456789123456789123456789 (Decimal) --> 1.23456789123457E+26 (Double)
// -79228162514264337593543950335 (Decimal) --> -7.92281625142643E+28 (Double)
// 79228162514264337593543950335 (Decimal) --> 7.92281625142643E+28 (Double)
using System;
class Example
{
public static void Main( )
{
// Define an array of decimal values.
decimal[] values = { 0.0000000000000000000000000001M,
0.0000000000123456789123456789M,
123M, new decimal(123000000, 0, 0, false, 6),
123456789.123456789M,
123456789123456789123456789M,
decimal.MinValue, decimal.MaxValue };
// Convert each value to a double.
foreach (var value in values) {
double dblValue = (double) value;
Console.WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType().Name, dblValue,
dblValue.GetType().Name);
}
}
}
// The example displays the following output:
// 0.0000000000000000000000000001 (Decimal) --> 1E-28 (Double)
// 0.0000000000123456789123456789 (Decimal) --> 1.23456789123457E-11 (Double)
// 123 (Decimal) --> 123 (Double)
// 123.000000 (Decimal) --> 123 (Double)
// 123456789.123456789 (Decimal) --> 123456789.123457 (Double)
// 123456789123456789123456789 (Decimal) --> 1.23456789123457E+26 (Double)
// -79228162514264337593543950335 (Decimal) --> -7.92281625142643E+28 (Double)
// 79228162514264337593543950335 (Decimal) --> 7.92281625142643E+28 (Double)
open System
// Define a list of decimal values.
let values =
[ 0.0000000000000000000000000001M
0.0000000000123456789123456789M
123M; Decimal(123000000, 0, 0, false, 6uy)
123456789.123456789M
123456789123456789123456789M
Decimal.MinValue; Decimal.MaxValue ]
// Convert each value to a double.
for value in values do
let dblValue = double value
printfn $"{value} ({value.GetType().Name}) --> {dblValue} ({dblValue.GetType().Name})"
// The example displays the following output:
// 0.0000000000000000000000000001 (Decimal) --> 1E-28 (Double)
// 0.0000000000123456789123456789 (Decimal) --> 1.23456789123457E-11 (Double)
// 123 (Decimal) --> 123 (Double)
// 123.000000 (Decimal) --> 123 (Double)
// 123456789.123456789 (Decimal) --> 123456789.123457 (Double)
// 123456789123456789123456789 (Decimal) --> 1.23456789123457E+26 (Double)
// -79228162514264337593543950335 (Decimal) --> -7.92281625142643E+28 (Double)
// 79228162514264337593543950335 (Decimal) --> 7.92281625142643E+28 (Double)
Module Example
Public Sub Main( )
' Define an array of Decimal values.
Dim values() As Decimal= { 0.0000000000000000000000000001d,
0.0000000000123456789123456789d,
123d,
New Decimal(123000000, 0, 0, False, 6),
123456789.123456789d,
123456789123456789123456789d,
Decimal.MinValue, Decimal.MaxValue }
For Each value In values
Dim dblValue As Double = CDbl(value)
Console.WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType().Name, dblValue,
dblValue.GetType().Name)
Next
End Sub
End Module
' The example displays the following output:
' 0.0000000000000000000000000001 (Decimal) --> 1E-28 (Double)
' 0.0000000000123456789123456789 (Decimal) --> 1.23456789123457E-11 (Double)
' 123 (Decimal) --> 123 (Double)
' 123.000000 (Decimal) --> 123 (Double)
' 123456789.123456789 (Decimal) --> 123456789.123457 (Double)
' 123456789123456789123456789 (Decimal) --> 1.23456789123457E+26 (Double)
' -79228162514264337593543950335 (Decimal) --> -7.92281625142643E+28 (Double)
' 79228162514264337593543950335 (Decimal) --> 7.92281625142643E+28 (Double)
Poznámky
Tato operace může mít za následek ztrátu přesnosti, protože číslo s plovoucí desetinou čárkou s dvojitou přesností má méně platných číslic než Decimal.
Tento operátor podporuje explicitní převod na DecimalDouble. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty, když explicitně převedete Decimal hodnotu na Double hodnotu pomocí C#, C++ a Visual Basicu. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToDouble(Decimal)Convert.ToDouble(Decimal) nebo .
Viz také
Platí pro
Explicit(Decimal to Char)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Definuje explicitní převod znaku na Decimal znak Unicode.
public:
static explicit operator char(System::Decimal value);
public static explicit operator char (decimal value);
static member op_Explicit : decimal -> char
Public Shared Narrowing Operator CType (value As Decimal) As Char
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
Znak Unicode, který představuje převedený Decimalznak .
Výjimky
value
je menší než Char.MinValue nebo větší než Char.MaxValue.
Příklady
Následující příklad převede Decimal čísla na Char hodnoty (znaky Unicode) pomocí explicitního Decimal operátoru převodu na Char .
using System;
class Example
{
public static void Main( )
{
// Define an array of decimal values.
decimal[] values = { 3.33m, 55.5m, 77.7m, 123m, 123.999m, 170m,
188.88m, 222m, 244m, 8217m, 8250m, 65536m,
-1m };
// Convert each value to a Char.
foreach (decimal value in values) {
try {
char charValue = (char) value;
Console.WriteLine("{0} --> {1} ({2:X4})", value,
charValue, (ushort) charValue);
}
catch (OverflowException) {
Console.WriteLine("OverflowException: Cannot convert {0}",
value);
}
}
}
}
// The example displays the following output:
// 3.33 --> ? (0003)
// 55.5 --> 7 (0037)
// 77.7 --> M (004D)
// 123 --> { (007B)
// 123.999 --> { (007B)
// 170 --> ª (00AA)
// 188.88 --> ¼ (00BC)
// 222 --> _ (00DE)
// 244 --> ô (00F4)
// 8217 --> ' (2019)
// 8250 --> > (203A)
// OverflowException: Cannot convert 65536
// OverflowException: Cannot convert -1
open System
// Define a list of decimal values.
let values =
[ 3.33m; 55.5m; 77.7m; 123m; 123.999m; 170m; 188.88m; 222m; 244m; 8217m; 8250m; 65536m; -1m ]
// Convert each value to a Char.
for value in values do
try
let charValue = char value
printfn $"{value} --> {charValue} ({uint16 charValue:X4})"
with :? OverflowException ->
printfn $"OverflowException: Cannot convert {value}"
// The example displays the following output:
// 3.33 --> ? (0003)
// 55.5 --> 7 (0037)
// 77.7 --> M (004D)
// 123 --> { (007B)
// 123.999 --> { (007B)
// 170 --> ª (00AA)
// 188.88 --> ¼ (00BC)
// 222 --> _ (00DE)
// 244 --> ô (00F4)
// 8217 --> ' (2019)
// 8250 --> > (203A)
// OverflowException: Cannot convert 65536
// OverflowException: Cannot convert -1
' Visual Basic does not support explicit Decimal-to-Char
' conversion using either CType or CChar.
Poznámky
Tento operátor podporuje explicitní převod na DecimalChar. Syntaxe těchto explicitních převodů závisí na jazyce a jednotlivé kompilátory jazyka mohou poskytovat různé implementace a vracet různé výsledky nebo nemusí převod vůbec podporovat. Například kompilátory jazyka Visual Basic a C++ nepodporují explicitní DecimalChar převod.
Viz také
Platí pro
Explicit(Decimal to Byte)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Definuje explicitní převod Decimal na 8bitové celé číslo bez znaménka.
public:
static explicit operator System::Byte(System::Decimal value);
public static explicit operator byte (decimal value);
static member op_Explicit : decimal -> byte
Public Shared Narrowing Operator CType (value As Decimal) As Byte
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
8bitové celé číslo bez znaménka, které představuje převedený Decimal.
Výjimky
value
je menší než Byte.MinValue nebo větší než Byte.MaxValue.
Příklady
Následující příklad převede Decimal čísla na Byte hodnoty pomocí operátoru explicitního Decimal převodu na Byte .
using namespace System;
void main()
{
// Define an array of decimal values.
array<Decimal>^ values = { Decimal::Parse("78"),
Decimal(78000,0,0,false,3),
Decimal::Parse("78.999"),
Decimal::Parse("255.999"),
Decimal::Parse("256"),
Decimal::Parse("127.999"),
Decimal::Parse("128"),
Decimal::Parse("-0.999"),
Decimal::Parse("-1"),
Decimal::Parse("-128.999"),
Decimal::Parse("-129") };
for each (Decimal value in values) {
try {
Byte byteValue = (Byte) value;
Console::WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType()->Name, byteValue,
byteValue.GetType()->Name);
}
catch (OverflowException^ e) {
Console::WriteLine("OverflowException: Cannot convert {0}",
value);
}
}
}
// The example displays the following output:
// 78 (Decimal) --> 78 (Byte)
// 78.000 (Decimal) --> 78 (Byte)
// 78.999 (Decimal) --> 78 (Byte)
// 255.999 (Decimal) --> 255 (Byte)
// OverflowException: Cannot convert 256
// 127.999 (Decimal) --> 127 (Byte)
// 128 (Decimal) --> 128 (Byte)
// -0.999 (Decimal) --> 0 (Byte)
// OverflowException: Cannot convert -1
// OverflowException: Cannot convert -128.999
// OverflowException: Cannot convert -129
using System;
class Example
{
public static void Main()
{
// Define an array of decimal values.
decimal[] values = { 78m, new Decimal(78000, 0, 0, false, 3),
78.999m, 255.999m, 256m, 127.999m,
128m, -0.999m, -1m, -128.999m, -129m };
foreach (var value in values) {
try {
Byte byteValue = (Byte) value;
Console.WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType().Name, byteValue,
byteValue.GetType().Name);
}
catch (OverflowException) {
Console.WriteLine("OverflowException: Cannot convert {0}",
value);
}
}
}
}
// The example displays the following output:
// 78 (Decimal) --> 78 (Byte)
// 78.000 (Decimal) --> 78 (Byte)
// 78.999 (Decimal) --> 78 (Byte)
// 255.999 (Decimal) --> 255 (Byte)
// OverflowException: Cannot convert 256
// 127.999 (Decimal) --> 127 (Byte)
// 128 (Decimal) --> 128 (Byte)
// -0.999 (Decimal) --> 0 (Byte)
// OverflowException: Cannot convert -1
// OverflowException: Cannot convert -128.999
// OverflowException: Cannot convert -129
open System
// Define a list of decimal values.
let values =
[ 78m; Decimal(78000, 0, 0, false, 3uy)
78.999m; 255.999m; 256m; 127.999m
128m; -0.999m; -1m; -128.999m; -129m ]
for value in values do
try
let byteValue = byte value
printfn $"{value} ({value.GetType().Name}) --> {byteValue} ({byteValue.GetType().Name})"
with :? OverflowException ->
printfn $"OverflowException: Cannot convert {value}"
// The example displays the following output:
// 78 (Decimal) --> 78 (Byte)
// 78.000 (Decimal) --> 78 (Byte)
// 78.999 (Decimal) --> 78 (Byte)
// 255.999 (Decimal) --> 255 (Byte)
// OverflowException: Cannot convert 256
// 127.999 (Decimal) --> 127 (Byte)
// 128 (Decimal) --> 128 (Byte)
// -0.999 (Decimal) --> 0 (Byte)
// OverflowException: Cannot convert -1
// OverflowException: Cannot convert -128.999
// OverflowException: Cannot convert -129
Option Strict On
Module Example
Public Sub Main()
' Define an array of decimal values.
Dim values() As Decimal = { 78d, New Decimal(78000, 0, 0, False, 3),
78.999d, 255.999d, 256d, 127.999d,
128d, -0.999d, -1d, -128.999d,
-129d }
For Each value In values
Try
Dim byteValue As Byte = CByte(value)
Console.WriteLine("{0} ({1}) --> {2} ({3})", value,
value.GetType().Name, byteValue,
byteValue.GetType().Name)
Catch e As OverflowException
Console.WriteLine("OverflowException: Cannot convert {0}",
value)
End Try
Next
End Sub
End Module
' The example displays the following output:
' 78 (Decimal) --> 78 (Byte)
' 78.000 (Decimal) --> 78 (Byte)
' 78.999 (Decimal) --> 79 (Byte)
' OverflowException: Cannot convert 255.999
' OverflowException: Cannot convert 256
' 127.999 (Decimal) --> 128 (Byte)
' 128 (Decimal) --> 128 (Byte)
' OverflowException: Cannot convert -0.999
' OverflowException: Cannot convert -1
' OverflowException: Cannot convert -128.999
' OverflowException: Cannot convert -129
Poznámky
Tento operátor podporuje explicitní převod na DecimalByte. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty, když explicitně převedete Decimal hodnotu na Byte hodnotu pomocí C#, C++ a Visual Basicu. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToByte(Decimal)Convert.ToByte(Decimal) nebo .
Viz také
Platí pro
Explicit(Decimal to Int64)
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
- Zdroj:
- Decimal.cs
Definuje explicitní převod Decimal na 64bitové celé číslo se signoum.
public:
static explicit operator long(System::Decimal value);
public static explicit operator long (decimal value);
static member op_Explicit : decimal -> int64
Public Shared Narrowing Operator CType (value As Decimal) As Long
Parametry
- value
- Decimal
Hodnota, kterou chcete převést.
Návraty
64bitové celé číslo se signedýmm systémem , které představuje převedený Decimal.
Výjimky
value
je menší než Int64.MinValue nebo větší než Int64.MaxValue.
Příklady
Následující příklad převede Decimal čísla na Int64 hodnoty pomocí operátoru explicitního Decimal převodu na Int64 .
// Example of the explicit conversions from Decimal to __int64 and
// Decimal to unsigned __int64.
using namespace System;
#define formatter "{0,25}{1,22}{2,22}"
// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
String^ exceptionType = ex->GetType()->ToString();
return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}
// Convert the Decimal argument; catch exceptions that are thrown.
void DecimalToU_Int64( Decimal argument )
{
Object^ Int64Value;
Object^ UInt64Value;
// Convert the argument to an __int64 value.
try
{
Int64Value = (__int64)argument;
}
catch ( Exception^ ex )
{
Int64Value = GetExceptionType( ex );
}
// Convert the argument to an unsigned __int64 value.
try
{
UInt64Value = (unsigned __int64)argument;
}
catch ( Exception^ ex )
{
UInt64Value = GetExceptionType( ex );
}
Console::WriteLine( formatter, argument, Int64Value, UInt64Value );
}
int main()
{
Console::WriteLine( "This example of the explicit conversions from Decimal to "
"__int64 \nand Decimal to unsigned __int64 generates the "
"following output. \nIt displays several converted Decimal "
"values.\n" );
Console::WriteLine( formatter, "Decimal argument", "__int64", "unsigned __int64" );
Console::WriteLine( formatter, "----------------", "-------", "----------------" );
// Convert Decimal values and display the results.
DecimalToU_Int64( Decimal::Parse( "123" ) );
DecimalToU_Int64( Decimal(123000,0,0,false,3) );
DecimalToU_Int64( Decimal::Parse( "123.999" ) );
DecimalToU_Int64( Decimal::Parse( "18446744073709551615.999" ) );
DecimalToU_Int64( Decimal::Parse( "18446744073709551616" ) );
DecimalToU_Int64( Decimal::Parse( "9223372036854775807.999" ) );
DecimalToU_Int64( Decimal::Parse( "9223372036854775808" ) );
DecimalToU_Int64( Decimal::Parse( "-0.999" ) );
DecimalToU_Int64( Decimal::Parse( "-1" ) );
DecimalToU_Int64( Decimal::Parse( "-9223372036854775808.999" ) );
DecimalToU_Int64( Decimal::Parse( "-9223372036854775809" ) );
}
/*
This example of the explicit conversions from Decimal to __int64
and Decimal to unsigned __int64 generates the following output.
It displays several converted Decimal values.
Decimal argument __int64 unsigned __int64
---------------- ------- ----------------
123 123 123
123.000 123 123
123.999 123 123
18446744073709551615.999 OverflowException 18446744073709551615
18446744073709551616 OverflowException OverflowException
9223372036854775807.999 9223372036854775807 9223372036854775807
9223372036854775808 OverflowException 9223372036854775808
-0.999 0 0
-1 -1 OverflowException
-9223372036854775808.999 -9223372036854775808 OverflowException
-9223372036854775809 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to long and
// decimal to ulong.
using System;
class DecimalToU_Int64Demo
{
const string formatter = "{0,25}{1,22}{2,22}";
// Get the exception type name; remove the namespace prefix.
public static string GetExceptionType( Exception ex )
{
string exceptionType = ex.GetType( ).ToString( );
return exceptionType.Substring(
exceptionType.LastIndexOf( '.' ) + 1 );
}
// Convert the decimal argument; catch exceptions that are thrown.
public static void DecimalToU_Int64( decimal argument )
{
object Int64Value;
object UInt64Value;
// Convert the argument to a long value.
try
{
Int64Value = (long)argument;
}
catch( Exception ex )
{
Int64Value = GetExceptionType( ex );
}
// Convert the argument to a ulong value.
try
{
UInt64Value = (ulong)argument;
}
catch( Exception ex )
{
UInt64Value = GetExceptionType( ex );
}
Console.WriteLine( formatter, argument,
Int64Value, UInt64Value );
}
public static void Main( )
{
Console.WriteLine(
"This example of the explicit conversions from decimal " +
"to long \nand decimal to ulong generates the following " +
"output. It displays \nseveral converted decimal " +
"values.\n" );
Console.WriteLine( formatter, "decimal argument",
"long/exception", "ulong/exception" );
Console.WriteLine( formatter, "----------------",
"--------------", "---------------" );
// Convert decimal values and display the results.
DecimalToU_Int64( 123M );
DecimalToU_Int64( new decimal( 123000, 0, 0, false, 3 ) );
DecimalToU_Int64( 123.999M );
DecimalToU_Int64( 18446744073709551615.999M );
DecimalToU_Int64( 18446744073709551616M );
DecimalToU_Int64( 9223372036854775807.999M );
DecimalToU_Int64( 9223372036854775808M );
DecimalToU_Int64( - 0.999M );
DecimalToU_Int64( - 1M );
DecimalToU_Int64( - 9223372036854775808.999M );
DecimalToU_Int64( - 9223372036854775809M );
}
}
/*
This example of the explicit conversions from decimal to long
and decimal to ulong generates the following output. It displays
several converted decimal values.
decimal argument long/exception ulong/exception
---------------- -------------- ---------------
123 123 123
123.000 123 123
123.999 123 123
18446744073709551615.999 OverflowException 18446744073709551615
18446744073709551616 OverflowException OverflowException
9223372036854775807.999 9223372036854775807 9223372036854775807
9223372036854775808 OverflowException 9223372036854775808
-0.999 0 0
-1 -1 OverflowException
-9223372036854775808.999 -9223372036854775808 OverflowException
-9223372036854775809 OverflowException OverflowException
*/
// Example of the explicit conversions from decimal to long and
// decimal to ulong.
let print obj1 obj2 obj3 = printfn $"{obj1,25}{obj2,22}{obj3,22}"
// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
let exceptionType = ex.GetType() |> string
exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)
// Convert the decimal argument; catch exceptions that are thrown.
let decimalToU_Int64 (argument: decimal) =
let int32Value: obj =
// Convert the argument to a int64 value.
try
int32 argument
with ex -> getExceptionType ex
let uint32Value: obj =
// Convert the argument to a uint64 value.
try
uint32 argument
with ex -> getExceptionType ex
print argument int32Value uint32Value
printfn "This example of the explicit conversions from decimal to long\nand decimal to ulong generates the following output. It displays\nseveral converted decimal values.\n"
print "decimal argument" "long/exception" "ulong/exception"
print "----------------" "--------------" "---------------"
// Convert decimal values and display the results.
decimalToU_Int64 123M
decimalToU_Int64 (new decimal(123000, 0, 0, false, 3uy))
decimalToU_Int64 123.999M
decimalToU_Int64 18446744073709551615.999M
decimalToU_Int64 18446744073709551616M
decimalToU_Int64 9223372036854775807.999M
decimalToU_Int64 9223372036854775808M
decimalToU_Int64 -0.999M
decimalToU_Int64 -1M
decimalToU_Int64 -9223372036854775808.999M
decimalToU_Int64 -9223372036854775809M
// This example of the explicit conversions from decimal to long
// and decimal to ulong generates the following output. It displays
// several converted decimal values.
//
// decimal argument long/exception ulong/exception
// ---------------- -------------- ---------------
// 123 123 123
// 123.000 123 123
// 123.999 123 123
// 18446744073709551615.999 OverflowException 18446744073709551615
// 18446744073709551616 OverflowException OverflowException
// 9223372036854775807.999 9223372036854775807 9223372036854775807
// 9223372036854775808 OverflowException 9223372036854775808
// -0.999 0 0
// -1 -1 OverflowException
// -9223372036854775808.999 -9223372036854775808 OverflowException
// -9223372036854775809 OverflowException OverflowException
' Example of the explicit conversions from Decimal to Long and
' Decimal to ULong.
Module DecimalToU_Int64Demo
Const formatter As String = "{0,25}{1,22}{2,22}"
' Convert the decimal argument catch exceptions that are thrown.
Public Sub DecimalToU_Int64(argument As Decimal)
Dim Int64Value As Object
Dim UInt64Value As Object
' Convert the argument to a long value.
Try
Int64Value = CLng(argument)
Catch ex As Exception
Int64Value = ex.GetType().Name
End Try
' Convert the argument to a ulong value.
Try
UInt64Value = CULng(argument)
Catch ex As Exception
UInt64Value = ex.GetType().Name
End Try
Console.WriteLine(formatter, argument, _
Int64Value, UInt64Value)
End Sub
Public Sub Main( )
Console.WriteLine( formatter, "Decimal argument", _
"Long/Exception", "ULong/Exception" )
Console.WriteLine( formatter, "----------------", _
"--------------", "---------------" )
' Convert decimal values and display the results.
DecimalToU_Int64(123d)
DecimalToU_Int64(New Decimal(123000, 0, 0, False, 3))
DecimalToU_Int64(123.999d)
DecimalToU_Int64(18446744073709551615.999d)
DecimalToU_Int64(18446744073709551616d)
DecimalToU_Int64(9223372036854775807.999d)
DecimalToU_Int64(9223372036854775808d)
DecimalToU_Int64(-0.999d)
DecimalToU_Int64(-1d)
DecimalToU_Int64(-9223372036854775808.999d)
DecimalToU_Int64(-9223372036854775809d)
End Sub
End Module
' The example displays the following output to the console:
' Decimal argument Long/Exception ULong/Exception
' ---------------- -------------- ---------------
' 123 123 123
' 123.000 123 123
' 123.999 124 124
' 18446744073709551615.999 OverflowException OverflowException
' 18446744073709551616 OverflowException OverflowException
' 9223372036854775807.999 OverflowException 9223372036854775808
' 9223372036854775808 OverflowException 9223372036854775808
' -0.999 -1 OverflowException
' -1 -1 OverflowException
' -9223372036854775808.999 OverflowException OverflowException
' -9223372036854775809 OverflowException OverflowException
Poznámky
Tento operátor podporuje explicitní převod objektu na DecimalInt64. Syntaxe těchto explicitních převodů závisí na jazyku a kompilátory jednotlivých jazyků mohou generovat různé implementace a vracet různé výsledky. Příklad znázorňuje různé návratové hodnoty, když hodnotu explicitně převedete Decimal na Int64 hodnotu pomocí jazyka C# a Visual Basic. Chcete-li provést převod, který je nezávislý na jazyce, můžete volat metodu Decimal.ToInt64(Decimal)Convert.ToInt64(Decimal) nebo .