Windows Dev Center

Int64.ToString Method (IFormatProvider)

Converts the numeric value of this instance to its equivalent string representation using the specified culture-specific format information.

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

public string ToString(
	IFormatProvider provider
)

Parameters

provider
Type: System.IFormatProvider
An IFormatProvider that supplies culture-specific formatting information.

Return Value

Type: System.String
The string representation of the value of this instance as specified by provider.

Implements

IConvertible.ToString(IFormatProvider)

This instance is formatted with the general numeric format specifier ("G").

The .NET Framework provides extensive formatting support, which is described in greater detail in the following formatting topics:

The provider parameter is an IFormatProvider that obtains a NumberFormatInfo object. The NumberFormatInfo provides culture-specific format information about this instance. If provider is null, this instance is formatted with the NumberFormatInfo for the current culture.

The following code example formats an integral and a floating-point numeric value using the thread current culture, a specified culture, and all the standard numeric format specifiers. This code example uses two particular numeric types, but would yield similar results for any of the numeric base types (Byte, SByte, Int16, Int32, Int64, UInt16, UInt32, UInt64, Decimal, Single, and Double).


using System;
using System.Globalization;
using System.Threading;

public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      // Display string representations of numbers for en-us culture
      CultureInfo ci = new CultureInfo("en-us");

      // Output floating point values
      double floating = 10761.937554;
      outputBlock.Text += String.Format("C: {0}",
              floating.ToString("C", ci)) + "\n";           // Displays "C: $10,761.94"
      outputBlock.Text += String.Format("E: {0}",
              floating.ToString("E03", ci)) + "\n";         // Displays "E: 1.076E+004"
      outputBlock.Text += String.Format("F: {0}",
              floating.ToString("F04", ci)) + "\n";         // Displays "F: 10761.9376"         
      outputBlock.Text += String.Format("G: {0}",
              floating.ToString("G", ci)) + "\n";           // Displays "G: 10761.937554"
      outputBlock.Text += String.Format("N: {0}",
              floating.ToString("N03", ci)) + "\n";         // Displays "N: 10,761.938"
      outputBlock.Text += String.Format("P: {0}",
              (floating / 10000).ToString("P02", ci)) + "\n"; // Displays "P: 107.62 %"
      outputBlock.Text += String.Format("R: {0}",
              floating.ToString("R", ci)) + "\n";           // Displays "R: 10761.937554"            
      outputBlock.Text += "\n";

      // Output integral values
      int integral = 8395;
      outputBlock.Text += String.Format("C: {0}",
              integral.ToString("C", ci)) + "\n";           // Displays "C: $8,395.00"
      outputBlock.Text += String.Format("D: {0}",
              integral.ToString("D6", ci)) + "\n";          // Displays D: 008395"" 
      outputBlock.Text += String.Format("E: {0}",
              integral.ToString("E03", ci)) + "\n";         // Displays "E: 8.395E+003"
      outputBlock.Text += String.Format("F: {0}",
              integral.ToString("F01", ci)) + "\n";         // Displays "F: 8395.0"    
      outputBlock.Text += String.Format("G: {0}",
              integral.ToString("G", ci)) + "\n";           // Displays "G: 8395"
      outputBlock.Text += String.Format("N: {0}",
              integral.ToString("N01", ci)) + "\n";         // Displays "N: 8,395.0"
      outputBlock.Text += String.Format("P: {0}",
              (integral / 10000).ToString("P02", ci)) + "\n"; // Displays "P: 83.95 %"
      outputBlock.Text += String.Format("X: 0x{0}",
              integral.ToString("X", ci)) + "\n";           // Displays "X: 0x20CB"
      outputBlock.Text += "\n";
   }
}


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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