public static void ShowDialog(Character character, EventHandler callback)
        {
            DG_ItemSetNameToCompare window = new DG_ItemSetNameToCompare(character);

            if (callback != null)
            {
                window.Closed += callback;
            }
            window.Show();
        }
 public static void ShowDialog(Character character, EventHandler callback)
 {
     DG_ItemSetNameToCompare window = new DG_ItemSetNameToCompare(character);
     if (callback != null) window.Closed += callback;
     window.Show();
 }