private void SelectedItemSet_SelectionRemoved(GKit.WPF.UI.Controls.ITreeItem item)
 {
     SelectionChanged();
     DetailTab.DeactiveDetailPanel();
 }
 private void SelectedItemSet_SelectionAdded(GKit.WPF.UI.Controls.ITreeItem item)
 {
     SelectionChanged();
     DetailTab.ActiveDetailPanel(DetailPanelType.UiItem);
 }