NumberFormatInfo.NumberGroupSeparator Property

Gets or sets the string that separates groups of digits to the left of the decimal in numeric values.

Namespace:  System.Globalization
Assemblies:   mscorlib (in mscorlib.dll)
  System.Globalization (in System.Globalization.dll)

public string NumberGroupSeparator { get; set; }

Property Value

Type: System.String
The string that separates groups of digits to the left of the decimal in numeric values. The default for InvariantInfo is ",".

ExceptionCondition
ArgumentNullException

The property is being set to null.

InvalidOperationException

The property is being set and the NumberFormatInfo object is read-only.

The NumberGroupSeparator property is used with the "N" standard format string to define the symbol that separates groups of integral digits. For more information, see Standard Numeric Format Strings.

The initial value of this property is derived from the settings in the Region and Language item in Control Panel.

The following example demonstrates the effect of changing the NumberGroupSeparator property.

using System;
using System.Globalization;

class NumberFormatInfoSample {

   public static void Main() {

      // Gets a NumberFormatInfo associated with the en-US culture.
      NumberFormatInfo nfi = new CultureInfo( "en-US", false ).NumberFormat;

      // Displays a value with the default separator (",").
      Int64 myInt = 123456789;
      Console.WriteLine( myInt.ToString( "N", nfi ) );

      // Displays the same value with a blank as the separator.
      nfi.NumberGroupSeparator = " ";
      Console.WriteLine( myInt.ToString( "N", nfi ) );

   }
}


/* 
This code produces the following output.

123,456,789.00
123 456 789.00
*/
   

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2015 Microsoft