This documentation is archived and is not being maintained.

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
Assembly: mscorlib (in mscorlib.dll)

'Declaration
Public Property NumberGroupSeparator As String
'Usage
Dim instance As NumberFormatInfo
Dim value As String

value = instance.NumberGroupSeparator

instance.NumberGroupSeparator = value
/** @property */
public String get_NumberGroupSeparator ()

/** @property */
public void set_NumberGroupSeparator (String value)

public function get NumberGroupSeparator () : String

public function set NumberGroupSeparator (value : String)

Property Value

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

Exception typeCondition

ArgumentNullException

The property is being set to a null reference (Nothing in Visual Basic).

InvalidOperationException

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

The initial value of this property is derived from the settings in Regional and Language Options (or Regional Options or Regional Settings) in Control Panel.

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

Imports System
Imports System.Globalization

Class NumberFormatInfoSample

   Public Shared Sub Main()

      ' Gets a NumberFormatInfo associated with the en-US culture.
      Dim nfi As NumberFormatInfo = New CultureInfo("en-US", False).NumberFormat

      ' Displays a value with the default separator (",").
      Dim myInt As Int64 = 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))

   End Sub 'Main 

End Class 'NumberFormatInfoSample


'This code produces the following output.

'

'123,456,789.00

'123 456 789.00



import System.*;
import System.Globalization.*;

class NumberFormatInfoSample
{
    public static void main(String[] args)
    {
        // Gets a NumberFormatInfo associated with the en-US culture.
        NumberFormatInfo nfi = (new 
            CultureInfo("en-US", false)).get_NumberFormat();
        // Displays a value with the default separator (",").
        Int64 myInt = (Int64)123456789;
        Console.WriteLine(myInt.ToString("N", nfi));
        // Displays the same value with a blank as the separator.
        nfi.set_NumberGroupSeparator(" ");
        Console.WriteLine(myInt.ToString("N", nfi));
    } //main 
} //NumberFormatInfoSample


/* 
This code produces the following output.

123,456,789.00
123 456 789.00
*/


Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0
Show: