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.NET 6.0+

XafApplication.SetLanguage(String) Method

Sets the specified language for the current application when called before the application windows are shown.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v24.1.dll

NuGet Package: DevExpress.ExpressApp


public void SetLanguage(
    string languageName


Name Type Description
languageName String

A string value representing the name of the language that must be used in the application.


XAF application uses the language specified by the IModelApplication.PreferredLanguage property of the Application Model’s IModelApplication node (see Localization Basics). To set another language during application startup, use the SetLanguage method. The method assigns the languageName parameter value to the PreferredLanguage property. So, the specified language will be used even after the application is restarted.

See the SetFormattingCulture article for an example.


The SetLanguage method does not work for XAF ASP.NET Core Blazor UI applications. Refer to the following topic for information on how to localize XAF ASP.NET Core Blazor UI applications: Localize an XAF Application (.NET).


XAF applications are not designed to switch the language during application execution.

See Also