private async void AddBookmark_Click(object sender, TappedRoutedEventArgs e)
{
var c = new BookmarkAddNeedsClass();
c.Location = LastRightTap;
c.PlaceName = PlaceName.Text;
await new BookmarkAdd(c).ShowAsync();
InfoPane.IsPaneOpen = false;
}
public BookmarkAdd(BookmarkAddNeedsClass Context)
{
this.InitializeComponent();
DataContext = Context;
}