/// <summary>
 /// Writes the current view state into the memento.
 /// </summary>
 public void StoreViewState(Properties memento)
 {
     projectBrowserControl.StoreViewState(memento);
     memento.Set("ProjectBrowserState", ExtTreeView.GetViewStateString(projectBrowserControl.TreeView));
 }
 /// <summary>
 /// Writes the current view state into the memento.
 /// </summary>
 public void StoreViewState(Properties memento)
 {
     memento.Set("ProjectBrowserState", ExtTreeView.GetViewStateString(treeView));
 }