UInt64.ToString Method (String)
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Converts the numeric value of this instance to its equivalent string representation using the specified format.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
<SecuritySafeCriticalAttribute> _
Public Function ToString ( _
format As String _
) As String
[SecuritySafeCriticalAttribute]
public string ToString(
string format
)
Parameters
- format
Type: System.String
A numeric format string.
Return Value
Type: System.String
The string representation of the value of this instance as specified by format.
Remarks
The format parameter can be any valid standard numeric format specifier, or any combination of custom numeric format specifiers. If format is equal to String.Empty or is nulla null reference (Nothing in Visual Basic), the return value of the current UInt64 object is formatted with the general format specifier ("G"). If format is any other value, the method throws a FormatException.
.gif "Note") Note: |
|---|
Because the UInt64 data type is not supported on the Macintosh OS X operating system, the string representation of a UInt64 value may be different from the string representations of other .NET Framework numeric types that are supported by OS X. |
The .NET Framework provides extensive formatting support, which is described in greater detail in the following formatting topics:
For more information about numeric format specifiers, see Standard Numeric Format Strings and Custom Numeric Format Strings.
For more information about formatting, see Formatting Types.
The format of the returned string is determined by the NumberFormatInfo object for the current culture. Depending on the format parameter, this object controls symbols such as the group separator and the decimal point symbol in the output string. To provide formatting information for cultures other than the current culture, call the ToString(String, IFormatProvider) overload.
Examples
The following example displays a 64-bit unsigned integer value by using each standard format string and some custom format strings.
Imports System.Globalization
Module Example
Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
Dim value As ULong = 217960834
Dim specifiers() As String = {"G", "C", "D3", "E2", "e3", "F", _
"N", "P", "X", "000000.0", "#.0", _
"00000000;(0);**Zero**"}
For Each specifier As String In specifiers
outputBlock.Text += String.Format("{0}: {1}", specifier, value.ToString(specifier)) & vbCrLf
Next
End Sub
End Module
' The example displays the following output:
' G: 217960834
' C: $217,960,834.00
' D3: 217960834
' E2: 2.18E+008
' e3: 2.180e+008
' F: 217960834.00
' N: 217,960,834.00
' P: 21,796,083,400.00 %
' X: CFDD182
' 000000.0: 217960834.0
' #.0: 217960834.0
' 00000000;(0);**Zero**: 217960834
using System;
using System.Globalization;
public class Example
{
public static void Demo(System.Windows.Controls.TextBlock outputBlock)
{
ulong value = 217960834;
string[] specifiers = { "G", "C", "D3", "E2", "e3", "F",
"N", "P", "X", "000000.0", "#.0",
"00000000;(0);**Zero**" };
foreach (string specifier in specifiers)
outputBlock.Text += String.Format("{0}: {1}", specifier, value.ToString(specifier)) + "\n";
}
}
// The example displays the following output:
// G: 217960834
// C: $217,960,834.00
// D3: 217960834
// E2: 2.18E+008
// e3: 2.180e+008
// F: 217960834.00
// N: 217,960,834.00
// P: 21,796,083,400.00 %
// X: CFDD182
// 000000.0: 217960834.0
// #.0: 217960834.0
// 00000000;(0);**Zero**: 217960834
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
See Also