WPF DatePicker Watermark modified to Chinese

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Add the following code to the App.cs:

        protected Override voidOnstartup (StartupEventArgs e) {Base.            Onstartup (e); Eventmanager.registerclasshandler (typeof(DatePicker), Datepicker.loadedevent,NewRoutedeventhandler (datepicker_loaded)); }         Public StaticT getchildoftype<t> (DependencyObject depobj)whereT:dependencyobject {if(Depobj = =NULL)return NULL;  for(inti =0; I < Visualtreehelper.getchildrencount (depobj); i++)            {                varChild =Visualtreehelper.getchild (Depobj, i); varresult = (Child asT)?? Getchildoftype<t>(child); if(Result! =NULL)returnresult; }            return NULL; }        voidDatepicker_loaded (Objectsender, RoutedEventArgs e) {            varDP = Sender asDatePicker; if(DP = =NULL)return; varTB = getchildoftype<datepickertextbox>(DP); if(TB = =NULL)return; varWM = TB. Template.findname ("Part_watermark", TB) asContentControl; if(WM = =NULL)return; Wm. Content="Select a Date"; }

WPF DatePicker Watermark modified to Chinese