ApplicationBase.ChangeCulture Method (String)

 

Changes the culture used by the current thread for string manipulation and for string formatting.

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

[HostProtectionAttribute(SecurityAction.LinkDemand, Resources = HostProtectionResource.ExternalProcessMgmt)]
public void ChangeCulture(
	string cultureName
)

Parameters

cultureName
Type: System.String

String. Name of the culture as a string. For a list of possible names, see CultureInfo.

Exception Condition
ArgumentNullException

cultureName is Nothing.

ArgumentException

cultureName is not a valid culture name.

The My.Application.ChangeCulture method changes the current thread's CurrentCulture property. CurrentCulture determines the default formats for dates, times, currency, numbers, sorting order of text, string comparisons, and casing for all computations on that thread.

To retrieve the current culture, you can use the Culture property or the CurrentCulture property.

The CurrentCulture setting is different from a language setting. It contains only data related to the standard settings for a geographical region. Therefore, the CurrentCulture property can only be set to a specific culture or to the InvariantCulture.

Use the My.Application.ChangeUICulture method to change the culture that the current thread uses for retrieving culture-specific resources.

System_CAPS_security Security Note

The My.Application.ChangeCulture method requires a SecurityPermission with the ControlThread set. Manipulating threads is dangerous because of the security state associated with threads. Therefore, this permission should be given only as necessary to trustworthy code. You cannot change a thread's culture in semi-trusted code.

Project type

Available

Windows Forms Application

Yes

Class Library

Yes

Console Application

Yes

Windows Forms Control Library

Yes

Web Control Library

No

Windows Service

Yes

Web Site

No

This example demonstrates how changing the culture changes the string representation of dates.

Private Sub TestChangeCulture()
    ' Store the current culture.
    Dim currentculture As String = My.Application.Culture.Name
    MsgBox("Current culture is " & currentculture)

    Dim jan1 As New Date(2005, 1, 1, 15, 15, 15)

    My.Application.ChangeCulture("en-US")
    MsgBox("Date represented in en-US culture: " & jan1)
    ' 1/1/2005 3:15:15 PM

    My.Application.ChangeCulture("")
    MsgBox("Date represented in invariant culture" & jan1)
    ' 01/01/2005 15:15:15

    ' Restore the culture.
    My.Application.ChangeCulture(currentculture)
End Sub

.NET Framework
Available since 2.0
Return to top
Show: