NumberGroupSeparator Property

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)

Public Property NumberGroupSeparator As String

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 ",".

Exception Condition

The property is being set to null.


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.

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

Universal Windows Platform
Available since 8
.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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