private async void CommandHander(IUICommand command)
 {
     var commandLabel = command.Label;
     switch (commandLabel)
     {
         case "Yes":
             {
                 await Deleting();
                 BLL_USERS blluser = new BLL_USERS();
                 this.DataContext = blluser.getUser();
             }                   
             break;
         case "No":
             break;
     }
 }
 private void Page_Loading(FrameworkElement sender, object args)
 {
     BLL_USERS blluser = new BLL_USERS();
     this.DataContext = blluser.getUser();
 }