ToString Method

UInt64.ToString Method ()


Converts the numeric value of this instance to its equivalent string representation.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

public override string ToString()

Return Value

Type: System.String

The string representation of the value of this instance, consisting of a sequence of digits ranging from 0 to 9, without a sign or leading zeroes.

The ToString() method formats a UInt64 value in the default ("G", or general) format by using the NumberFormatInfo object of the current culture. If you want to specify a different format or culture, use the other overloads of the ToString method, as follows:

To use format

For culture

Use the overload

Default ("G") format

A specific culture


A specific format

Default (current) culture


A specific format

A specific culture

ToString(String, IFormatProvider)

The following example displays a UInt64 value by using the default ToString() method. It also displays the string representations of the UInt64 value that results from using some standard format specifiers. The examples are displayed using the formatting conventions of the en-US culture.

using System;

public class Example
   public static void Main()
      ulong value = 163249057;
      // Display value using default ToString method.

      // Define an array of format specifiers.
      string[] formats = { "G", "C", "D", "F", "N", "X" };
      // Display value using the standard format specifiers.
      foreach (string format in formats)
         Console.WriteLine("{0} format specifier: {1,16}", 
                           format, value.ToString(format));         
// The example displays the following output:
//       163249057
//       G format specifier:        163249057
//       C format specifier:  $163,249,057.00
//       D format specifier:        163249057
//       F format specifier:     163249057.00
//       N format specifier:   163,249,057.00
//       X format specifier:          9BAFBA1

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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