private void Share_Tapped(object sender, TappedRoutedEventArgs e)
 {
     PopControl pc = new PopControl();
     SelectPublicSourceControl control = new SelectPublicSourceControl(pc);
     control.ChooseAction = ChooseActionCallback;
     pc.SetCustomContent(control);
     pc.ShowPop();
 }
 private void Write_Tapped(object sender, TappedRoutedEventArgs e)
 {
     topAppBar.IsOpen = false;
     bottomAppBar.IsOpen = false;
     MyControl.PopControl pc = new MyControl.PopControl();
     MyControl.SelectPublicSourceControl control = new MyControl.SelectPublicSourceControl(pc);
     control.ChooseAction = ChooseActionCallback;
     pc.SetCustomContent(control);
     pc.ShowPop();
 }