public HComboTree()
 {
     this.Build();
     Popup = new TreePopupDialog( this );
     comboBox.PopupButton.Clicked += OnPopupButtonClicked;
 }
 public HComboTree()
 {
     this.Build();
     Popup = new TreePopupDialog(this);
     comboBox.PopupButton.Clicked += OnPopupButtonClicked;
 }