public static RadTreeView LoadGrammarFromXML(Stream stream)
 {
     RadTreeView tree = new RadTreeView();
     tree.LoadXML(stream, typeof(GrammarTreeViewTag));
     return tree;
 }
 public static void LoadGrammarFromXML(string filePath, ref RadTreeView tree)
 {
     tree.LoadXML(filePath, typeof(GrammarTreeViewTag));
 }