private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
BGMouseLeftButtonDown?.Execute(null);
//Grid grid = new Grid();
//pictureControl.Visibility = Visibility.Hidden;
}
private void Grid_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
BGMouseLeftButtonDown?.Execute(e);
//PictureControl.Visibility = Visibility.Hidden;
}