I have to implement multilingual support for an application that is mainly an winform application. But some ​forms of the application has been converted to WPF and they used Telerik RadGridview control. These WPF forms are launched from inside the Winform application. So the WPF project does not have any app.xaml.cs files , so no app_startup event. From examples I have seen that the UICulture has to be set in that event . Also the Localization manager has to be set in that particular event. I have tried setting the culture in form level, before initializing components, but did not work. Is there a way to implement Localization for Telerik controls in the mentioned scenario ?