UInt16.Parse Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Converts the string representation of a number to its 16-bit unsigned integer equivalent.
Overloads
Parse(String, NumberStyles, IFormatProvider) |
Converts the string representation of a number in a specified style and culture-specific format to its 16-bit unsigned integer equivalent. |
Parse(ReadOnlySpan<Char>, NumberStyles, IFormatProvider) |
Converts the span representation of a number in a specified style and culture-specific format to its 16-bit unsigned integer equivalent. |
Parse(ReadOnlySpan<Byte>, NumberStyles, IFormatProvider) |
Parses a span of UTF-8 characters into a value. |
Parse(String, IFormatProvider) |
Converts the string representation of a number in a specified culture-specific format to its 16-bit unsigned integer equivalent. |
Parse(String, NumberStyles) |
Converts the string representation of a number in a specified style to its 16-bit unsigned integer equivalent. This method is not CLS-compliant. The CLS-compliant alternative is Parse(String, NumberStyles). |
Parse(ReadOnlySpan<Char>, IFormatProvider) |
Parses a span of characters into a value. |
Parse(ReadOnlySpan<Byte>, IFormatProvider) |
Parses a span of UTF-8 characters into a value. |
Parse(String) |
Converts the string representation of a number to its 16-bit unsigned integer equivalent. |
Parse(String, NumberStyles, IFormatProvider)
- Source:
- UInt16.cs
- Source:
- UInt16.cs
- Source:
- UInt16.cs
Converts the string representation of a number in a specified style and culture-specific format to its 16-bit unsigned integer equivalent.
public:
static System::UInt16 Parse(System::String ^ s, System::Globalization::NumberStyles style, IFormatProvider ^ provider);
public:
static System::UInt16 Parse(System::String ^ s, System::Globalization::NumberStyles style, IFormatProvider ^ provider) = System::Numerics::INumberBase<System::UInt16>::Parse;
[System.CLSCompliant(false)]
public static ushort Parse (string s, System.Globalization.NumberStyles style, IFormatProvider provider);
public static ushort Parse (string s, System.Globalization.NumberStyles style, IFormatProvider? provider);
[System.CLSCompliant(false)]
public static ushort Parse (string s, System.Globalization.NumberStyles style, IFormatProvider? provider);
[<System.CLSCompliant(false)>]
static member Parse : string * System.Globalization.NumberStyles * IFormatProvider -> uint16
static member Parse : string * System.Globalization.NumberStyles * IFormatProvider -> uint16
Public Shared Function Parse (s As String, style As NumberStyles, provider As IFormatProvider) As UShort
Parameters
- s
- String
A string that represents the number to convert. The string is interpreted by using the style specified by the style
parameter.
- style
- NumberStyles
A bitwise combination of enumeration values that indicate the style elements that can be present in s
. A typical value to specify is Integer.
- provider
- IFormatProvider
An object that supplies culture-specific formatting information about s
.
Returns
A 16-bit unsigned integer equivalent to the number specified in s
.
Implements
- Attributes
Exceptions
s
is null
.
style
is not a NumberStyles value.
-or-
style
is not a combination of AllowHexSpecifier and HexNumber values.
s
is not in a format compliant with style
.
s
represents a number that is less than UInt16.MinValue or greater than UInt16.MaxValue.
-or-
s
includes non-zero, fractional digits.
Examples
The following example uses the Parse(String, NumberStyles, IFormatProvider) method to convert various string representations of numbers to 16-bit unsigned integer values.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
string[] cultureNames = { "en-US", "fr-FR" };
NumberStyles[] styles= { NumberStyles.Integer,
NumberStyles.Integer | NumberStyles.AllowDecimalPoint };
string[] values = { "1702", "+1702.0", "+1702,0", "-1032.00",
"-1032,00", "1045.1", "1045,1" };
// Parse strings using each culture
foreach (string cultureName in cultureNames)
{
CultureInfo ci = new CultureInfo(cultureName);
Console.WriteLine("Parsing strings using the {0} culture",
ci.DisplayName);
// Use each style.
foreach (NumberStyles style in styles)
{
Console.WriteLine(" Style: {0}", style.ToString());
// Parse each numeric string.
foreach (string value in values)
{
try {
Console.WriteLine(" Converted '{0}' to {1}.", value,
UInt16.Parse(value, style, ci));
}
catch (FormatException) {
Console.WriteLine(" Unable to parse '{0}'.", value);
}
catch (OverflowException) {
Console.WriteLine(" '{0}' is out of range of the UInt16 type.",
value);
}
}
}
}
}
}
// The example displays the following output:
// Parsing strings using the English (United States) culture
// Style: Integer
// Converted '1702' to 1702.
// Unable to parse '+1702.0'.
// Unable to parse '+1702,0'.
// Unable to parse '-1032.00'.
// Unable to parse '-1032,00'.
// Unable to parse '1045.1'.
// Unable to parse '1045,1'.
// Style: Integer, AllowDecimalPoint
// Converted '1702' to 1702.
// Converted '+1702.0' to 1702.
// Unable to parse '+1702,0'.
// '-1032.00' is out of range of the UInt16 type.
// Unable to parse '-1032,00'.
// '1045.1' is out of range of the UInt16 type.
// Unable to parse '1045,1'.
// Parsing strings using the French (France) culture
// Style: Integer
// Converted '1702' to 1702.
// Unable to parse '+1702.0'.
// Unable to parse '+1702,0'.
// Unable to parse '-1032.00'.
// Unable to parse '-1032,00'.
// Unable to parse '1045.1'.
// Unable to parse '1045,1'.
// Style: Integer, AllowDecimalPoint
// Converted '1702' to 1702.
// Unable to parse '+1702.0'.
// Converted '+1702,0' to 1702.
// Unable to parse '-1032.00'.
// '-1032,00' is out of range of the UInt16 type.
// Unable to parse '1045.1'.
// '1045,1' is out of range of the UInt16 type.
open System
open System.Globalization
let cultureNames = [| "en-US"; "fr-FR" |]
let styles =
[| NumberStyles.Integer; NumberStyles.Integer ||| NumberStyles.AllowDecimalPoint |]
let values =
[| "1702"; "+1702.0"; "+1702,0"; "-1032.00"; "-1032,00"; "1045.1"; "1045,1" |]
// Parse strings using each culture
for cultureName in cultureNames do
let ci = CultureInfo cultureName
printfn $"Parsing strings using the {ci.DisplayName} culture"
// Use each style.
for style in styles do
printfn $" Style: {style}"
// Parse each numeric string.
for value in values do
try
printfn $" Converted '{value}' to {UInt16.Parse(value, style, ci)}."
with
| :? FormatException ->
printfn $" Unable to parse '{value}'."
| :? OverflowException ->
printfn $" '{value}' is out of range of the UInt16 type."
// The example displays the following output:
// Parsing strings using the English (United States) culture
// Style: Integer
// Converted '1702' to 1702.
// Unable to parse '+1702.0'.
// Unable to parse '+1702,0'.
// Unable to parse '-1032.00'.
// Unable to parse '-1032,00'.
// Unable to parse '1045.1'.
// Unable to parse '1045,1'.
// Style: Integer, AllowDecimalPoint
// Converted '1702' to 1702.
// Converted '+1702.0' to 1702.
// Unable to parse '+1702,0'.
// '-1032.00' is out of range of the UInt16 type.
// Unable to parse '-1032,00'.
// '1045.1' is out of range of the UInt16 type.
// Unable to parse '1045,1'.
// Parsing strings using the French (France) culture
// Style: Integer
// Converted '1702' to 1702.
// Unable to parse '+1702.0'.
// Unable to parse '+1702,0'.
// Unable to parse '-1032.00'.
// Unable to parse '-1032,00'.
// Unable to parse '1045.1'.
// Unable to parse '1045,1'.
// Style: Integer, AllowDecimalPoint
// Converted '1702' to 1702.
// Unable to parse '+1702.0'.
// Converted '+1702,0' to 1702.
// Unable to parse '-1032.00'.
// '-1032,00' is out of range of the UInt16 type.
// Unable to parse '1045.1'.
// '1045,1' is out of range of the UInt16 type.
Imports System.Globalization
Module Example
Public Sub Main()
Dim cultureNames() As String = { "en-US", "fr-FR" }
Dim styles() As NumberStyles = { NumberStyles.Integer, _
NumberStyles.Integer Or NumberStyles.AllowDecimalPoint }
Dim values() As String = { "1702", "+1702.0", "+1702,0", "-1032.00", _
"-1032,00", "1045.1", "1045,1" }
' Parse strings using each culture
For Each cultureName As String In cultureNames
Dim ci As New CultureInfo(cultureName)
Console.WriteLine("Parsing strings using the {0} culture", ci.DisplayName)
' Use each style.
For Each style As NumberStyles In styles
Console.WriteLine(" Style: {0}", style.ToString())
' Parse each numeric string.
For Each value As String In values
Try
Console.WriteLine(" Converted '{0}' to {1}.", value, _
UInt16.Parse(value, style, ci))
Catch e As FormatException
Console.WriteLine(" Unable to parse '{0}'.", value)
Catch e As OverflowException
Console.WriteLine(" '{0}' is out of range of the UInt16 type.", _
value)
End Try
Next
Next
Next
End Sub
End Module
' The example displays the following output:
' Parsing strings using the English (United States) culture
' Style: Integer
' Converted '1702' to 1702.
' Unable to parse '+1702.0'.
' Unable to parse '+1702,0'.
' Unable to parse '-1032.00'.
' Unable to parse '-1032,00'.
' Unable to parse '1045.1'.
' Unable to parse '1045,1'.
' Style: Integer, AllowDecimalPoint
' Converted '1702' to 1702.
' Converted '+1702.0' to 1702.
' Unable to parse '+1702,0'.
' '-1032.00' is out of range of the UInt16 type.
' Unable to parse '-1032,00'.
' '1045.1' is out of range of the UInt16 type.
' Unable to parse '1045,1'.
' Parsing strings using the French (France) culture
' Style: Integer
' Converted '1702' to 1702.
' Unable to parse '+1702.0'.
' Unable to parse '+1702,0'.
' Unable to parse '-1032.00'.
' Unable to parse '-1032,00'.
' Unable to parse '1045.1'.
' Unable to parse '1045,1'.
' Style: Integer, AllowDecimalPoint
' Converted '1702' to 1702.
' Unable to parse '+1702.0'.
' Converted '+1702,0' to 1702.
' Unable to parse '-1032.00'.
' '-1032,00' is out of range of the UInt16 type.
' Unable to parse '1045.1'.
' '1045,1' is out of range of the UInt16 type.
Remarks
The style
parameter defines the style elements (such as white space or the positive or negative sign symbol) that are allowed in the s
parameter for the parse operation to succeed. It must be a combination of bit flags from the NumberStyles enumeration.
Depending on the value of style
, the s
parameter may include the following elements:
[ws][$][sign]digits[.fractional_digits][E[sign]exponential_digits][ws]
Elements in square brackets ([ and ]) are optional. If style
includes NumberStyles.AllowHexSpecifier, the s
parameter may include the following elements:
[ws]hexdigits[ws]
The following table describes each element.
Element | Description |
---|---|
ws | Optional white space. White space can appear at the beginning of s if style includes the NumberStyles.AllowLeadingWhite flag, and it can appear at the end of s if style includes the NumberStyles.AllowTrailingWhite flag. |
$ | A culture-specific currency symbol. Its position in the string is defined by the CurrencyPositivePattern property of the NumberFormatInfo object that is returned by the GetFormat method of the provider parameter. The currency symbol can appear in s if style includes the NumberStyles.AllowCurrencySymbol flag. |
sign | An optional sign. (The method throws an OverflowException if s includes a negative sign and represents a non-zero number.) The sign can appear at the beginning of s if style includes the NumberStyles.AllowLeadingSign flag, and it can appear the end of s if style includes the NumberStyles.AllowTrailingSign flag. Parentheses can be used in s to indicate a negative value if style includes the NumberStyles.AllowParentheses flag. |
digits | A sequence of digits from 0 through 9. |
. | A culture-specific decimal point symbol. The current culture's decimal point symbol can appear in s if style includes the NumberStyles.AllowDecimalPoint flag. |
fractional_digits | One or more occurrences of the digit 0-9 if style includes the NumberStyles.AllowExponent flag, or one or more occurrences of the digit 0 if it does not. Fractional digits can appear in s only if style includes the NumberStyles.AllowDecimalPoint flag. |
E | The "e" or "E" character, which indicates that the value is represented in exponential (scientific) notation. The s parameter can represent a number in exponential notation if style includes the NumberStyles.AllowExponent flag. |
exponential_digits | A sequence of digits from 0 through 9. The s parameter can represent a number in exponential notation if style includes the NumberStyles.AllowExponent flag. |
hexdigits | A sequence of hexadecimal digits from 0 through f, or 0 through F. |
Note
Any terminating NUL (U+0000) characters in s
are ignored by the parsing operation, regardless of the value of the style
argument.
A string with decimal digits only (which corresponds to the NumberStyles.None style) always parses successfully. Most of the remaining NumberStyles members control elements that may be present, but are not required to be present, in this input string. The following table indicates how individual NumberStyles members affect the elements that may be present in s
.
Non-composite NumberStyles values |
Elements permitted in s in addition to digits |
---|---|
NumberStyles.None | Decimal digits only. |
NumberStyles.AllowDecimalPoint | The decimal point (.) and fractional_digits elements. However, if style does not include the NumberStyles.AllowExponent flag, fractional_digits must consist of only one or more 0 digits; otherwise, an OverflowException is thrown. |
NumberStyles.AllowExponent | The "e" or "E" character, which indicates exponential notation, along with exponential_digits. |
NumberStyles.AllowLeadingWhite | The ws element at the beginning of s . |
NumberStyles.AllowTrailingWhite | The ws element at the end of s . |
NumberStyles.AllowLeadingSign | A sign before digits. |
NumberStyles.AllowTrailingSign | A sign after digits. |
NumberStyles.AllowParentheses | Parentheses before and after digits to indicate a negative value. |
NumberStyles.AllowThousands | The group separator (,) element. |
NumberStyles.AllowCurrencySymbol | The currency ($) element. |
If the NumberStyles.AllowHexSpecifier flag is used, s
must be a hexadecimal value. Valid hexadecimal digits are 0 through 9, a through f, and A through F. A prefix, such as "0x", is not supported and causes the parse operation to fail. The only other flags that can be combined with NumberStyles.AllowHexSpecifier are NumberStyles.AllowLeadingWhite and NumberStyles.AllowTrailingWhite. (The NumberStyles enumeration includes a composite number style, NumberStyles.HexNumber, that includes both white-space flags.)
Note
If the s
parameter is the string representation of a hexadecimal number, it cannot be preceded by any decoration (such as 0x
or &h
) that differentiates it as a hexadecimal number. This causes the parse operation to throw an exception.
The provider
parameter is an IFormatProvider implementation whose GetFormat method returns a NumberFormatInfo object that provides culture-specific information about the format of s
. There are three ways to use the provider
parameter to supply custom formatting information to the parse operation:
You can pass the actual NumberFormatInfo object that provides formatting information. (Its implementation of GetFormat simply returns itself.)
You can pass a CultureInfo object that specifies the culture whose formatting is to be used. Its NumberFormat property provides formatting information.
You can pass a custom IFormatProvider implementation. Its GetFormat method must instantiate and return the NumberFormatInfo object that provides formatting information.
If provider
is null
, the NumberFormatInfo object for the current culture is used.
See also
Applies to
Parse(ReadOnlySpan<Char>, NumberStyles, IFormatProvider)
- Source:
- UInt16.cs
- Source:
- UInt16.cs
- Source:
- UInt16.cs
Important
This API is not CLS-compliant.
Converts the span representation of a number in a specified style and culture-specific format to its 16-bit unsigned integer equivalent.
public static ushort Parse (ReadOnlySpan<char> s, System.Globalization.NumberStyles style = System.Globalization.NumberStyles.Integer, IFormatProvider? provider = default);
[System.CLSCompliant(false)]
public static ushort Parse (ReadOnlySpan<char> s, System.Globalization.NumberStyles style = System.Globalization.NumberStyles.Integer, IFormatProvider provider = default);
[System.CLSCompliant(false)]
public static ushort Parse (ReadOnlySpan<char> s, System.Globalization.NumberStyles style = System.Globalization.NumberStyles.Integer, IFormatProvider? provider = default);
static member Parse : ReadOnlySpan<char> * System.Globalization.NumberStyles * IFormatProvider -> uint16
[<System.CLSCompliant(false)>]
static member Parse : ReadOnlySpan<char> * System.Globalization.NumberStyles * IFormatProvider -> uint16
Public Shared Function Parse (s As ReadOnlySpan(Of Char), Optional style As NumberStyles = System.Globalization.NumberStyles.Integer, Optional provider As IFormatProvider = Nothing) As UShort
Parameters
- s
- ReadOnlySpan<Char>
A span containing the characters that represent the number to convert. The span is interpreted by using the style specified by the style
parameter.
- style
- NumberStyles
A bitwise combination of enumeration values that indicate the style elements that can be present in s
. A typical value to specify is Integer.
- provider
- IFormatProvider
An object that supplies culture-specific formatting information about s
.
Returns
A 16-bit unsigned integer equivalent to the number specified in s
.
Implements
- Attributes
Applies to
Parse(ReadOnlySpan<Byte>, NumberStyles, IFormatProvider)
- Source:
- UInt16.cs
- Source:
- UInt16.cs
Parses a span of UTF-8 characters into a value.
public static ushort Parse (ReadOnlySpan<byte> utf8Text, System.Globalization.NumberStyles style = System.Globalization.NumberStyles.Integer, IFormatProvider? provider = default);
static member Parse : ReadOnlySpan<byte> * System.Globalization.NumberStyles * IFormatProvider -> uint16
Public Shared Function Parse (utf8Text As ReadOnlySpan(Of Byte), Optional style As NumberStyles = System.Globalization.NumberStyles.Integer, Optional provider As IFormatProvider = Nothing) As UShort
Parameters
- utf8Text
- ReadOnlySpan<Byte>
The span of UTF-8 characters to parse.
- style
- NumberStyles
A bitwise combination of number styles that can be present in utf8Text
.
- provider
- IFormatProvider
An object that provides culture-specific formatting information about utf8Text
.
Returns
The result of parsing utf8Text
.
Implements
Applies to
Parse(String, IFormatProvider)
- Source:
- UInt16.cs
- Source:
- UInt16.cs
- Source:
- UInt16.cs
Converts the string representation of a number in a specified culture-specific format to its 16-bit unsigned integer equivalent.
public:
static System::UInt16 Parse(System::String ^ s, IFormatProvider ^ provider);
public:
static System::UInt16 Parse(System::String ^ s, IFormatProvider ^ provider) = IParsable<System::UInt16>::Parse;
[System.CLSCompliant(false)]
public static ushort Parse (string s, IFormatProvider provider);
public static ushort Parse (string s, IFormatProvider? provider);
[System.CLSCompliant(false)]
public static ushort Parse (string s, IFormatProvider? provider);
[<System.CLSCompliant(false)>]
static member Parse : string * IFormatProvider -> uint16
static member Parse : string * IFormatProvider -> uint16
Public Shared Function Parse (s As String, provider As IFormatProvider) As UShort
Parameters
- s
- String
A string that represents the number to convert.
- provider
- IFormatProvider
An object that supplies culture-specific formatting information about s
.
Returns
A 16-bit unsigned integer equivalent to the number specified in s
.
Implements
- Attributes
Exceptions
s
is null
.
s
is not in the correct format.
s
represents a number less than UInt16.MinValue or greater than UInt16.MaxValue.
Examples
The following example instantiates a custom culture that uses two plus signs (++) as its positive sign. It then calls the Parse(String, IFormatProvider) method to parse an array of strings by using CultureInfo objects that represent both this custom culture and the invariant culture.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
// Define a custom culture that uses "++" as a positive sign.
CultureInfo ci = new CultureInfo("");
ci.NumberFormat.PositiveSign = "++";
// Create an array of cultures.
CultureInfo[] cultures = { ci, CultureInfo.InvariantCulture };
// Create an array of strings to parse.
string[] values = { "++1403", "-0", "+0", "+16034",
Int16.MinValue.ToString(), "14.0", "18012" };
// Parse the strings using each culture.
foreach (CultureInfo culture in cultures)
{
Console.WriteLine("Parsing with the '{0}' culture.", culture.Name);
foreach (string value in values)
{
try {
ushort number = UInt16.Parse(value, culture);
Console.WriteLine(" Converted '{0}' to {1}.", value, number);
}
catch (FormatException) {
Console.WriteLine(" The format of '{0}' is invalid.", value);
}
catch (OverflowException) {
Console.WriteLine(" '{0}' is outside the range of a UInt16 value.", value);
}
}
}
}
}
// The example displays the following output:
// Parsing with the culture.
// Converted '++1403' to 1403.
// Converted '-0' to 0.
// The format of '+0' is invalid.
// The format of '+16034' is invalid.
// '-32768' is outside the range of a UInt16 value.
// The format of '14.0' is invalid.
// Converted '18012' to 18012.
// Parsing with the '' culture.
// The format of '++1403' is invalid.
// Converted '-0' to 0.
// Converted '+0' to 0.
// Converted '+16034' to 16034.
// '-32768' is outside the range of a UInt16 value.
// The format of '14.0' is invalid.
// Converted '18012' to 18012.
open System
open System.Globalization
// Define a custom culture that uses "++" as a positive sign.
let ci = CultureInfo ""
ci.NumberFormat.PositiveSign <- "++"
// Create an array of cultures.
let cultures = [| ci; CultureInfo.InvariantCulture |]
// Create an array of strings to parse.
let values =
[| "++1403"; "-0"; "+0"; "+16034"
string Int16.MinValue; "14.0"; "18012" |]
// Parse the strings using each culture.
for culture in cultures do
printfn $"Parsing with the '{culture.Name}' culture."
for value in values do
try
let number = UInt16.Parse(value, culture)
printfn $" Converted '{value}' to {number}."
with
| :? FormatException ->
printfn $" The format of '{value}' is invalid."
| :? OverflowException ->
printfn $" '{value}' is outside the range of a UInt16 value."
// The example displays the following output:
// Parsing with the culture.
// Converted '++1403' to 1403.
// Converted '-0' to 0.
// The format of '+0' is invalid.
// The format of '+16034' is invalid.
// '-32768' is outside the range of a UInt16 value.
// The format of '14.0' is invalid.
// Converted '18012' to 18012.
// Parsing with the '' culture.
// The format of '++1403' is invalid.
// Converted '-0' to 0.
// Converted '+0' to 0.
// Converted '+16034' to 16034.
// '-32768' is outside the range of a UInt16 value.
// The format of '14.0' is invalid.
// Converted '18012' to 18012.
Imports System.Globalization
Module Example
Public Sub Main()
' Define a custom culture that uses "++" as a positive sign.
Dim ci As CultureInfo = New CultureInfo("")
ci.NumberFormat.PositiveSign = "++"
' Create an array of cultures.
Dim cultures() As CultureInfo = { ci, CultureInfo.InvariantCulture }
' Create an array of strings to parse.
Dim values() As String = { "++1403", "-0", "+0", "+16034", _
Int16.MinValue.ToString(), "14.0", "18012" }
' Parse the strings using each culture.
For Each culture As CultureInfo In cultures
Console.WriteLine("Parsing with the '{0}' culture.", culture.Name)
For Each value As String In values
Try
Dim number As UShort = UInt16.Parse(value, culture)
Console.WriteLine(" Converted '{0}' to {1}.", value, number)
Catch e As FormatException
Console.WriteLine(" The format of '{0}' is invalid.", value)
Catch e As OverflowException
Console.WriteLine(" '{0}' is outside the range of a UInt16 value.", value)
End Try
Next
Next
End Sub
End Module
' The example displays the following output:
' Parsing with the culture.
' Converted '++1403' to 1403.
' Converted '-0' to 0.
' The format of '+0' is invalid.
' The format of '+16034' is invalid.
' '-32768' is outside the range of a UInt16 value.
' The format of '14.0' is invalid.
' Converted '18012' to 18012.
' Parsing with the '' culture.
' The format of '++1403' is invalid.
' Converted '-0' to 0.
' Converted '+0' to 0.
' Converted '+16034' to 16034.
' '-32768' is outside the range of a UInt16 value.
' The format of '14.0' is invalid.
' Converted '18012' to 18012.
Remarks
The s
parameter contains a number of the form:
[ws][sign]digits[ws]
Items in square brackets ([ and ]) are optional. The following table describes each element.
Element | Description |
---|---|
ws | Optional white space. |
sign | An optional sign, or a negative sign if s represents the value zero. |
digits | A sequence of digits ranging from 0 to 9. |
The s parameter is interpreted using the NumberStyles.Integer style. In addition to the byte value's decimal digits, only leading and trailing spaces along with a leading sign is allowed. (If the negative sign is present, s
must represent a value of zero or the method throws an OverflowException.) To explicitly define the style elements together with the culture-specific formatting information that can be present in s
, use the Parse(String, NumberStyles, IFormatProvider) method.
The provider
parameter is an IFormatProvider implementation whose GetFormat method returns a NumberFormatInfo object that provides culture-specific information about the format of s
. There are three ways to use the provider
parameter to supply custom formatting information to the parse operation:
You can pass the actual NumberFormatInfo object that provides formatting information. (Its implementation of GetFormat simply returns itself.)
You can pass a CultureInfo object that specifies the culture whose formatting is to be used. Its NumberFormat property provides formatting information.
You can pass a custom IFormatProvider implementation. Its GetFormat method must instantiate and return the NumberFormatInfo object that provides formatting information.
If provider
is null
, the NumberFormatInfo for the current culture is used.
See also
Applies to
Parse(String, NumberStyles)
- Source:
- UInt16.cs
- Source:
- UInt16.cs
- Source:
- UInt16.cs
Important
This API is not CLS-compliant.
Converts the string representation of a number in a specified style to its 16-bit unsigned integer equivalent.
This method is not CLS-compliant. The CLS-compliant alternative is Parse(String, NumberStyles).
public:
static System::UInt16 Parse(System::String ^ s, System::Globalization::NumberStyles style);
[System.CLSCompliant(false)]
public static ushort Parse (string s, System.Globalization.NumberStyles style);
public static ushort Parse (string s, System.Globalization.NumberStyles style);
[<System.CLSCompliant(false)>]
static member Parse : string * System.Globalization.NumberStyles -> uint16
static member Parse : string * System.Globalization.NumberStyles -> uint16
Public Shared Function Parse (s As String, style As NumberStyles) As UShort
Parameters
- s
- String
A string that represents the number to convert. The string is interpreted by using the style specified by the style
parameter.
- style
- NumberStyles
A bitwise combination of the enumeration values that specify the permitted format of s
. A typical value to specify is Integer.
Returns
A 16-bit unsigned integer equivalent to the number specified in s
.
- Attributes
Exceptions
s
is null
.
style
is not a NumberStyles value.
-or-
style
is not a combination of AllowHexSpecifier and HexNumber values.
s
is not in a format compliant with style
.
s
represents a number less than UInt16.MinValue or greater than UInt16.MaxValue.
-or-
s
includes non-zero, fractional digits.
Examples
The following example tries to parse each element in a string array by using a number of NumberStyles values.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
string[] values = { " 214 ", "1,064", "(0)", "1241+", " + 214 ", " +214 ", "2153.0", "1e03", "1300.0e-2" };
NumberStyles whitespace = NumberStyles.AllowLeadingWhite | NumberStyles.AllowTrailingWhite;
NumberStyles[] styles = { NumberStyles.None, whitespace,
NumberStyles.AllowLeadingSign | NumberStyles.AllowTrailingSign | whitespace,
NumberStyles.AllowThousands | NumberStyles.AllowCurrencySymbol,
NumberStyles.AllowExponent | NumberStyles.AllowDecimalPoint };
// Attempt to convert each number using each style combination.
foreach (string value in values)
{
Console.WriteLine("Attempting to convert '{0}':", value);
foreach (NumberStyles style in styles)
{
try {
ushort number = UInt16.Parse(value, style);
Console.WriteLine(" {0}: {1}", style, number);
}
catch (FormatException) {
Console.WriteLine(" {0}: Bad Format", style);
}
}
Console.WriteLine();
}
}
}
// The example display the following output:
// Attempting to convert ' 214 ':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: 214
// Integer, AllowTrailingSign: 214
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert '1,064':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: 1064
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert '(0)':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert '1241+':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: 1241
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert ' + 214 ':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert ' +214 ':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: 214
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert '2153.0':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: 2153
//
// Attempting to convert '1e03':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: 1000
//
// Attempting to convert '1300.0e-2':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: 13
open System
open System.Globalization
let values = [| " 214 "; "1,064"; "(0)"; "1241+"; " + 214 "; " +214 "; "2153.0"; "1e03"; "1300.0e-2" |]
let whitespace = NumberStyles.AllowLeadingWhite ||| NumberStyles.AllowTrailingWhite
let styles =
[| NumberStyles.None; whitespace
NumberStyles.AllowLeadingSign ||| NumberStyles.AllowTrailingSign ||| whitespace
NumberStyles.AllowThousands ||| NumberStyles.AllowCurrencySymbol
NumberStyles.AllowExponent ||| NumberStyles.AllowDecimalPoint |]
// Attempt to convert each number using each style combination.
for value in values do
printfn $"Attempting to convert '{value}':"
for style in styles do
try
let number = UInt16.Parse(value, style)
printfn $" {style}: {number}"
with :? FormatException ->
printfn $" {style}: Bad Format"
printfn ""
// The example display the following output:
// Attempting to convert ' 214 ':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: 214
// Integer, AllowTrailingSign: 214
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert '1,064':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: 1064
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert '(0)':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert '1241+':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: 1241
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert ' + 214 ':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert ' +214 ':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: 214
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: Bad Format
//
// Attempting to convert '2153.0':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: 2153
//
// Attempting to convert '1e03':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: 1000
//
// Attempting to convert '1300.0e-2':
// None: Bad Format
// AllowLeadingWhite, AllowTrailingWhite: Bad Format
// Integer, AllowTrailingSign: Bad Format
// AllowThousands, AllowCurrencySymbol: Bad Format
// AllowDecimalPoint, AllowExponent: 13
Imports System.Globalization
Module Example
Public Sub Main()
Dim values() As String = { " 214 ", "1,064", "(0)", "1241+", " + 214 ", " +214 ", "2153.0", "1e03", "1300.0e-2" }
Dim whitespace As NumberStyles = NumberStyles.AllowLeadingWhite Or NumberStyles.AllowTrailingWhite
Dim styles() As NumberStyles = { NumberStyles.None, _
whitespace, _
NumberStyles.AllowLeadingSign Or NumberStyles.AllowTrailingSign Or whitespace, _
NumberStyles.AllowThousands Or NumberStyles.AllowCurrencySymbol, _
NumberStyles.AllowExponent Or NumberStyles.AllowDecimalPoint }
' Attempt to convert each number using each style combination.
For Each value As String In values
Console.WriteLine("Attempting to convert '{0}':", value)
For Each style As NumberStyles In styles
Try
Dim number As UShort = UInt16.Parse(value, style)
Console.WriteLine(" {0}: {1}", style, number)
Catch e As FormatException
Console.WriteLine(" {0}: Bad Format", style)
End Try
Next
Console.WriteLine()
Next
End Sub
End Module
' The example displays the following output:
' Attempting to convert ' 214 ':
' None: Bad Format
' AllowLeadingWhite, AllowTrailingWhite: 214
' Integer, AllowTrailingSign: 214
' AllowThousands, AllowCurrencySymbol: Bad Format
' AllowDecimalPoint, AllowExponent: Bad Format
'
' Attempting to convert '1,064':
' None: Bad Format
' AllowLeadingWhite, AllowTrailingWhite: Bad Format
' Integer, AllowTrailingSign: Bad Format
' AllowThousands, AllowCurrencySymbol: 1064
' AllowDecimalPoint, AllowExponent: Bad Format
'
' Attempting to convert '(0)':
' None: Bad Format
' AllowLeadingWhite, AllowTrailingWhite: Bad Format
' Integer, AllowTrailingSign: Bad Format
' AllowThousands, AllowCurrencySymbol: Bad Format
' AllowDecimalPoint, AllowExponent: Bad Format
'
' Attempting to convert '1241+':
' None: Bad Format
' AllowLeadingWhite, AllowTrailingWhite: Bad Format
' Integer, AllowTrailingSign: 1241
' AllowThousands, AllowCurrencySymbol: Bad Format
' AllowDecimalPoint, AllowExponent: Bad Format
'
' Attempting to convert ' + 214 ':
' None: Bad Format
' AllowLeadingWhite, AllowTrailingWhite: Bad Format
' Integer, AllowTrailingSign: Bad Format
' AllowThousands, AllowCurrencySymbol: Bad Format
' AllowDecimalPoint, AllowExponent: Bad Format
'
' Attempting to convert ' +214 ':
' None: Bad Format
' AllowLeadingWhite, AllowTrailingWhite: Bad Format
' Integer, AllowTrailingSign: 214
' AllowThousands, AllowCurrencySymbol: Bad Format
' AllowDecimalPoint, AllowExponent: Bad Format
'
' Attempting to convert '2153.0':
' None: Bad Format
' AllowLeadingWhite, AllowTrailingWhite: Bad Format
' Integer, AllowTrailingSign: Bad Format
' AllowThousands, AllowCurrencySymbol: Bad Format
' AllowDecimalPoint, AllowExponent: 2153
'
' Attempting to convert '1e03':
' None: Bad Format
' AllowLeadingWhite, AllowTrailingWhite: Bad Format
' Integer, AllowTrailingSign: Bad Format
' AllowThousands, AllowCurrencySymbol: Bad Format
' AllowDecimalPoint, AllowExponent: 1000
'
' Attempting to convert '1300.0e-2':
' None: Bad Format
' AllowLeadingWhite, AllowTrailingWhite: Bad Format
' Integer, AllowTrailingSign: Bad Format
' AllowThousands, AllowCurrencySymbol: Bad Format
' AllowDecimalPoint, AllowExponent: 13
Remarks
The style
parameter defines the style elements (such as white space, the positive or negative sign symbol, the group separator symbol, or the decimal point symbol) that are allowed in the s
parameter for the parse operation to succeed. style
must be a combination of bit flags from the NumberStyles enumeration. The style
parameter makes this method overload useful when s
contains the string representation of a hexadecimal value, when the number system (decimal or hexadecimal) represented by s
is known only at run time, or when you want to disallow white space or a sign symbol in s
.
Depending on the value of style
, the s
parameter may include the following elements:
[ws][$][sign][digits,]digits[.fractional_digits][E[sign]exponential_digits][ws]
Elements in square brackets ([ and ]) are optional. If style
includes NumberStyles.AllowHexSpecifier, the s
parameter may contain the following elements:
[ws]hexdigits[ws]
The following table describes each element.
Element | Description |
---|---|
ws | Optional white space. White space can appear at the start of s if style includes the NumberStyles.AllowLeadingWhite flag, and it can appear at the end of s if style includes the NumberStyles.AllowTrailingWhite flag. |
$ | A culture-specific currency symbol. Its position in the string is defined by the NumberFormatInfo.CurrencyNegativePattern and NumberFormatInfo.CurrencyPositivePattern properties of the current culture. The current culture's currency symbol can appear in s if style includes the NumberStyles.AllowCurrencySymbol flag. |
sign | An optional sign. The sign can appear at the start of s if style includes the NumberStyles.AllowLeadingSign flag, and it can appear at the end of s if style includes the NumberStyles.AllowTrailingSign flag. Parentheses can be used in s to indicate a negative value if style includes the NumberStyles.AllowParentheses flag. However, the negative sign symbol can be used only with zero; otherwise, the method throws an OverflowException. |
digits fractional_digits exponential_digits |
A sequence of digits from 0 through 9. For fractional_digits, only the digit 0 is valid. |
, | A culture-specific group separator symbol. The current culture's group separator can appear in s if style includes the NumberStyles.AllowThousands flag. |
. | A culture-specific decimal point symbol. The current culture's decimal point symbol can appear in s if style includes the NumberStyles.AllowDecimalPoint flag. Only the digit 0 can appear as a fractional digit for the parse operation to succeed; if fractional_digits includes any other digit, a FormatException is thrown. |
E | The "e" or "E" character, which indicates that the value is represented in exponential (scientific) notation. The s parameter can represent a number in exponential notation if style includes the NumberStyles.AllowExponent flag. |
hexdigits | A sequence of hexadecimal digits from 0 through f, or 0 through F. |
Note
Any terminating NUL (U+0000) characters in s
are ignored by the parsing operation, regardless of the value of the style
argument.
A string with digits only (which corresponds to the NumberStyles.None style) always parses successfully if it is in the range of the UInt16 type. Most of the remaining NumberStyles members control elements that may be present, but are not required to be present, in the input string. The following table indicates how individual NumberStyles members affect the elements that may be present in s
.
NumberStyles value |
Elements permitted in s in addition to digits |
---|---|
None | The digits element only. |
AllowDecimalPoint | The decimal point (.) and fractional-digits elements. |
AllowExponent | The "e" or "E" character, which indicates exponential notation, along with exponential_digits. |
AllowLeadingWhite | The ws element at the start of s . |
AllowTrailingWhite | The ws element at the end of s . |
AllowLeadingSign | The sign element at the start of s . |
AllowTrailingSign | The sign element at the end of s . |
AllowParentheses | The sign element in the form of parentheses enclosing the numeric value. |
AllowThousands | The group separator (,) element. |
AllowCurrencySymbol | The currency ($) element. |
Currency | All elements. However, s cannot represent a hexadecimal number or a number in exponential notation. |
Float | The ws element at the start or end of s , sign at the start of s , and the decimal point (.) symbol. The s parameter can also use exponential notation. |
Number | The ws , sign , group separator (,), and decimal point (.) elements. |
Any | All elements. However, s cannot represent a hexadecimal number. |
Unlike the other NumberStyles values, which allow for, but do not require, the presence of particular style elements in s
, the NumberStyles.AllowHexSpecifier style value means that the individual numeric characters in s
are always interpreted as hexadecimal characters. Valid hexadecimal characters are 0-9, A-F, and a-f. A prefix, such as "0x", is not supported and causes the parse operation to fail. The only other flags that can be combined with the style
parameter are NumberStyles.AllowLeadingWhite and NumberStyles.AllowTrailingWhite. (The NumberStyles enumeration includes a composite number style, NumberStyles.HexNumber, that includes both white-space flags.)
Note
If s
is the string representation of a hexadecimal number, it cannot be preceded by any decoration (such as 0x
or &h
) that differentiates it as a hexadecimal number. This causes the conversion to fail.
The s
parameter is parsed by using the formatting information in a NumberFormatInfo object that is initialized for the current system culture. To specify the culture whose formatting information is used for the parse operation, call the Parse(String, NumberStyles, IFormatProvider) overload.
See also
Applies to
Parse(ReadOnlySpan<Char>, IFormatProvider)
- Source:
- UInt16.cs
- Source:
- UInt16.cs
- Source:
- UInt16.cs
Parses a span of characters into a value.
public:
static System::UInt16 Parse(ReadOnlySpan<char> s, IFormatProvider ^ provider) = ISpanParsable<System::UInt16>::Parse;
public static ushort Parse (ReadOnlySpan<char> s, IFormatProvider? provider);
static member Parse : ReadOnlySpan<char> * IFormatProvider -> uint16
Public Shared Function Parse (s As ReadOnlySpan(Of Char), provider As IFormatProvider) As UShort
Parameters
- s
- ReadOnlySpan<Char>
The span of characters to parse.
- provider
- IFormatProvider
An object that provides culture-specific formatting information about s
.
Returns
The result of parsing s
.
Implements
Applies to
Parse(ReadOnlySpan<Byte>, IFormatProvider)
- Source:
- UInt16.cs
- Source:
- UInt16.cs
Parses a span of UTF-8 characters into a value.
public:
static System::UInt16 Parse(ReadOnlySpan<System::Byte> utf8Text, IFormatProvider ^ provider) = IUtf8SpanParsable<System::UInt16>::Parse;
public static ushort Parse (ReadOnlySpan<byte> utf8Text, IFormatProvider? provider);
static member Parse : ReadOnlySpan<byte> * IFormatProvider -> uint16
Public Shared Function Parse (utf8Text As ReadOnlySpan(Of Byte), provider As IFormatProvider) As UShort
Parameters
- utf8Text
- ReadOnlySpan<Byte>
The span of UTF-8 characters to parse.
- provider
- IFormatProvider
An object that provides culture-specific formatting information about utf8Text
.
Returns
The result of parsing utf8Text
.
Implements
Applies to
Parse(String)
- Source:
- UInt16.cs
- Source:
- UInt16.cs
- Source:
- UInt16.cs
Converts the string representation of a number to its 16-bit unsigned integer equivalent.
public:
static System::UInt16 Parse(System::String ^ s);
[System.CLSCompliant(false)]
public static ushort Parse (string s);
public static ushort Parse (string s);
[<System.CLSCompliant(false)>]
static member Parse : string -> uint16
static member Parse : string -> uint16
Public Shared Function Parse (s As String) As UShort
Parameters
- s
- String
A string that represents the number to convert.
Returns
A 16-bit unsigned integer equivalent to the number contained in s
.
- Attributes
Exceptions
s
is null
.
s
is not in the correct format.
s
represents a number less than UInt16.MinValue or greater than UInt16.MaxValue.
Examples
The following example calls the Parse(String) method to convert each element in a string array to an unsigned 16-bit integer.
using System;
public class Example
{
public static void Main()
{
string[] values = { "-0", "17", "-12", "185", "66012", "+0",
"", null, "16.1", "28.0", "1,034" };
foreach (string value in values)
{
try {
ushort number = UInt16.Parse(value);
Console.WriteLine("'{0}' --> {1}", value, number);
}
catch (FormatException) {
Console.WriteLine("'{0}' --> Bad Format", value);
}
catch (OverflowException) {
Console.WriteLine("'{0}' --> OverflowException", value);
}
catch (ArgumentNullException) {
Console.WriteLine("'{0}' --> Null", value);
}
}
}
}
// The example displays the following output:
// '-0' --> 0
// '17' --> 17
// '-12' --> OverflowException
// '185' --> 185
// '66012' --> OverflowException
// '+0' --> 0
// '' --> Bad Format
// '' --> Null
// '16.1' --> Bad Format
// '28.0' --> Bad Format
// '1,034' --> Bad Format
open System
let values =
[| "-0"; "17"; "-12"; "185"; "66012"; "+0"
""; null; "16.1"; "28.0"; "1,034" |]
for value in values do
try
let number = UInt16.Parse value
printfn $"'{value}' --> {number}"
with
| :? FormatException ->
printfn $"'{value}' --> Bad Format"
| :? OverflowException ->
printfn $"'{value}' --> OverflowException"
| :? ArgumentNullException ->
printfn $"'{value}' --> Null"
// The example displays the following output:
// '-0' --> 0
// '17' --> 17
// '-12' --> OverflowException
// '185' --> 185
// '66012' --> OverflowException
// '+0' --> 0
// '' --> Bad Format
// '' --> Null
// '16.1' --> Bad Format
// '28.0' --> Bad Format
// '1,034' --> Bad Format
Module Example
Public Sub Main()
Dim values() As String = { "-0", "17", "-12", "185", "66012", _
"+0", "", Nothing, "16.1", "28.0", _
"1,034" }
For Each value As String In values
Try
Dim number As UShort = UInt16.Parse(value)
Console.WriteLine("'{0}' --> {1}", value, number)
Catch e As FormatException
Console.WriteLine("'{0}' --> Bad Format", value)
Catch e As OverflowException
Console.WriteLine("'{0}' --> OverflowException", value)
Catch e As ArgumentNullException
Console.WriteLine("'{0}' --> Null", value)
End Try
Next
End Sub
End Module
' The example displays the following output:
' '-0' --> 0
' '17' --> 17
' '-12' --> OverflowException
' '185' --> 185
' '66012' --> OverflowException
' '+0' --> 0
' '' --> Bad Format
' '' --> Null
' '16.1' --> Bad Format
' '28.0' --> Bad Format
' '1,034' --> Bad Format
Remarks
The s
parameter should be the string representation of a number in the following form.
[ws][sign]digits[ws]
Elements in square brackets ([ and ]) are optional. The following table describes each element.
Element | Description |
---|---|
ws | Optional white space. |
sign | An optional sign. Valid sign characters are determined by the NumberFormatInfo.NegativeSign and NumberFormatInfo.PositiveSign properties of the current culture. However, the negative sign symbol can be used only with zero; otherwise, the method throws an OverflowException. |
digits | A sequence of digits ranging from 0 to 9. Any leading zeros are ignored. |
Note
The string specified by the s
parameter is interpreted by using the NumberStyles.Integer style. It cannot contain any group separators or decimal separator, and it cannot have a decimal portion.
The s
parameter is parsed by using the formatting information in a System.Globalization.NumberFormatInfo object that is initialized for the current system culture. For more information, see NumberFormatInfo.CurrentInfo. To parse a string by using the formatting information of a specific culture, use the Parse(String, IFormatProvider) method.