private void GlueAllButton_OnClick(object sender, RoutedEventArgs e)
{
var imagesList = ImageGrid.Items;
string[] images = new string[imagesList.Count];
imagesList.CopyTo(images, 0);
string saveLocation = images[0].Split('\\').SkipLast(1).Join("\\");
Bitmap finalImage = Glue.GlueImages(images);
finalImage.Save($"{saveLocation}\\glued.png", ImageFormat.Png);
}