Im trying to add items to context menu in umbraco 6.1.6, but the examples i find online is not working.
can anyone tell me why?

public class TreeEvent : ApplicationBase

    {

        public TreeEvent()

        {

            BaseTree.BeforeNodeRender += new BaseTree.BeforeNodeRenderEventHandler(this.BaseTree_BeforeNodeRender);     

        }

        private void BaseTree_BeforeNodeRender(ref XmlTree sender, ref XmlTreeNode node, EventArgs e)

        {

          if (node.Menu != null)

          {

             // node.Menu.Insert(0, new TestAction());

              node.Menu.Insert(1, umbraco.BusinessLogic.Actions.ContextMenuSeperator.Instance);

              node.Menu.Insert(2, umbraco.BusinessLogic.Actions.ContextMenuSeperator.Instance);

              node.Menu.Insert(3, umbraco.BusinessLogic.Actions.ContextMenuSeperator.Instance);

          }

        }

  }