private void CloseConnection ()
        {
            Servernode.Logout ();
            outlineViewDataSource.RootNode.Children.Clear ();
            outlineViewDataSource = null;
            splitViewController.MainOutlineView.DataSource = null;
            splitViewController.MainTableView.DataSource = null;
            this.TxtLogon.StringValue = "";
            splitViewController.MainOutlineView.OutlineTableColumn.HeaderCell.Title = "";
            RemoveTableColumns ();
            NSNotificationCenter.DefaultCenter.PostNotificationName ("ReloadOutlineView", this);
            NSNotificationCenter.DefaultCenter.PostNotificationName ("ReloadTableView", this);
            ResetToolBarItems ();
            SetDefaultView ();
//			while (CrumbTableView.ColumnCount > 0) {
//				CrumbTableView.RemoveColumn (CrumbTableView.TableColumns () [0]);
//			}
        }
        public void InitialiseViews ()
        {
            ActionHelper.Execute (delegate() {
                CurrentSelectedNode = Servernode;
                outlineViewDataSource = new OutlineViewDataSource (Servernode);
                splitViewController.MainOutlineView.DataSource = outlineViewDataSource;
                splitViewController.MainOutlineView.Activated += OnOutlineViewActivated;
                splitViewController.MainOutlineView.SelectionDidChange += OnOutlineViewActivated;
                splitViewController.MainOutlineView.OutlineTableColumn.DataCell = new NSBrowserCell ();
                var auth = SnapInContext.Instance.AuthTokenManager.GetAuthToken (Servernode.DisplayName);
                this.TxtLogon.StringValue = "Logged in as " + auth.Login.User + "@" + auth.Login.DomainName;
                //splitViewController.MainOutlineView.OutlineTableColumn.HeaderCell.Title = "Connected to " + Servernode.DisplayName;

                InitialiseToolBar ();

                splitViewController.MainOutlineView.Delegate = new OutlineDelegate (this);
                splitViewController.MainTableView.Delegate = new TableDelegate (this);
                CrumbTableView.Hidden = true;
                //CrumbTableView.Delegate = new CrumbViewDelegate(this);
            });
        }