public TreeViewWithTreeModel(TreeViewState state, MultiColumnHeader multiColumnHeader, TreeModel <T> model)
     : base(state, multiColumnHeader)
 {
     Init(model);
 }
 private void Init(TreeModel <T> model)
 {
     m_TreeModel = model;
     m_TreeModel.modelChanged += ModelChanged;
 }
 public TreeViewWithTreeModel(TreeViewState state, TreeModel <T> model) : base(state)
 {
     Init(model);
 }