protected virtual void OnNewFolder(object sender, EventArgs args) { var srvNode = new FormFolderNode(); var folder = formFolder.CreateFormViewFolder(); folder.Name = "NewFolder" + DateTime.Now.ToString("yyyy-MM-dd hh:mm:sss"); srvNode.formFolder = folder; this.formFolder.FormViewFolders.AddChild(folder); this.Children.Add(srvNode); srvNode.Text = srvNode.Name = folder.Name; this.TreeNode.Expand(); }