C# treeview右鍵菜單 設定技巧

//在NodeMouseClick事件中 再將cms設定成treeview的cms. 這樣點空,不會出現右鍵菜單.      
         //右鍵菜單
       private void tv_Roots_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
        {
            if (e.Button != MouseButtons.Right) return;
            if (e.Node.Parent == null || e.Node == null) return;
            tv_Roots.SelectedNode = e.Node;
            cmsRouts.Show(tv_Roots, e.X, e.Y);
        }

 

//不同節點對應不同右鍵菜單的實現

   用1個cms. 右鍵點擊樹節點時，根據節點類型產生cms的MenuItem項及點擊事件

 

  private void tvOneRoot_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)        {            if (e.Button != MouseButtons.Right) return;            if (e.Node == null) return; //無節點            if (e.Node.Level == 0) return;            int nodeType = GetNodeTypeByGuid(e.Node.Name);            tvOneRoot.SelectedNode = e.Node;            InitcmsOneRout(nodeType);            cmsOneRout.Show(tvOneRoot, e.X, e.Y);        }        /// <summary>        /// 初始化cmsOneRoot 從nodetype        /// </summary>        /// <param name="nodetype"></param>        private void InitcmsOneRout(int nodetype)        {            cmsOneRout = new ContextMenuStrip();            if (nodetype == -1)            {                ToolStripMenuItem tmiEditRoutStation = new ToolStripMenuItem("編輯飛行網站");                tmiEditRoutStation.Click += new EventHandler(tmiEditRoutStation_Click);                cmsOneRout.Items.Add(tmiEditRoutStation);                ToolStripMenuItem tmiMoveRouteStation = new ToolStripMenuItem("已變更位元置");                tmiMoveRouteStation.Click += new EventHandler(tmiMoveRouteStation_Click);                cmsOneRout.Items.Add(tmiMoveRouteStation);                ToolStripMenuItem tmiDeleRouteStation = new ToolStripMenuItem("刪除飛行網站");                tmiDeleRouteStation.Click += new EventHandler(tmiDeleRouteStation_Click);                cmsOneRout.Items.Add(tmiDeleRouteStation);            }            else if (nodetype == 0)            {                ToolStripMenuItem tmiEditRout = new ToolStripMenuItem("編輯飛行段屬性");                tmiEditRout.Click += new EventHandler(tmiEditRout_Click);                cmsOneRout.Items.Add(tmiEditRout);                ToolStripMenuItem tmiDeleteRout = new ToolStripMenuItem("刪除飛行段");                tmiDeleteRout.Click += new EventHandler(tmiDeleteRout_Click);                cmsOneRout.Items.Add(tmiDeleteRout);            }            else if (nodetype == 1)            {             }            else if (nodetype == 2)            {            }            else            {             }        }void tmiEditRout_Click(object sender, EventArgs e)//編輯飛行段        {            string routId = tvOneRoot.SelectedNode.Name;            RouteParameter rp = GetRouteParaByGuid(routId);            FrmPointProperty frm = new FrmPointProperty(rp, 0, 1);            frm.OnRoutInfoUpdated += new FrmPointProperty.DelegateRouteInfoUpdated(frm_OnRoutInfoUpdated);            frm.ShowDialog();        }