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Strings.FormatNumber Method

Returns an expression formatted as a number.

Namespace:  Microsoft.VisualBasic
Assembly:  Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

public static function FormatNumber(
	Expression : Object, 
	NumDigitsAfterDecimal : int, 
	IncludeLeadingDigit : TriState, 
	UseParensForNegativeNumbers : TriState, 
	GroupDigits : TriState
) : String

Parameters

Expression
Type: System.Object

Required. Expression to be formatted.

NumDigitsAfterDecimal
Type: System.Int32

Optional. Numeric value indicating how many places are displayed to the right of the decimal. The default value is –1, which indicates that the computer's regional settings are used.

IncludeLeadingDigit
Type: Microsoft.VisualBasic.TriState

Optional. TriState constant that indicates whether a leading 0 is displayed for fractional values. See "Settings" for values.

UseParensForNegativeNumbers
Type: Microsoft.VisualBasic.TriState

Optional. TriState constant that indicates whether to place negative values within parentheses. See "Settings" for values.

GroupDigits
Type: Microsoft.VisualBasic.TriState

Optional. TriState constant that indicates whether or not numbers are grouped using the group delimiter specified in the locale settings. See "Settings" for values.

Return Value

Type: System.String
Returns an expression formatted as a number.

For more detailed information, see the Visual Basic topic FormatNumber Function (Visual Basic).

When one or more optional arguments are omitted the values for omitted arguments are provided by the locale settings.

NoteNote:

All settings information comes from the locale of the application. By default, that will be the locale set in the control panel. However, it may be changed programmatically by using the .NET Framework.

The IncludeLeadingDigit, UseParensForNegativeNumbers, and GroupDigits arguments have the following settings.

Constant

Description

TriState.True

True

TriState.False

False

TriState.UseDefault

The computer's regional settings

This example demonstrates the FormatNumber function.

Dim TestNumber As Integer = 45600
' Returns "45,600.00". 
Dim TestString As String = FormatNumber(TestNumber, 2, , , TriState.True)

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

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