C# treeview右键菜单 设置技巧

http://www.cnblogs.com/imihiroblog/archive/2012/06/02/2531949.html

//在NodeMouseClick事件中 再将cms设定成treeview的cms. 这样点空,不会出现右键菜单.      

         //右键菜单

       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);

        }

 

//不同节点对应不同右键菜单的实现

   用1个cms. 右键点击树节点时，根据节点类型生成cms的MenuItem项及点击事件

private void tvOneRoot_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
if (e.Button != MouseButtons.Right) return;
if (e.Node == null) return; //无节点
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 从nodetype
/// </summary>
/// <param name="nodetype"></param>
private void InitcmsOneRout(int nodetype)
{
cmsOneRout = new ContextMenuStrip();
if (nodetype == -1)
{
ToolStripMenuItem tmiEditRoutStation = new ToolStripMenuItem("编辑飞行站点");
tmiEditRoutStation.Click += new EventHandler(tmiEditRoutStation_Click);
cmsOneRout.Items.Add(tmiEditRoutStation);
ToolStripMenuItem tmiMoveRouteStation = new ToolStripMenuItem("更改位置");
tmiMoveRouteStation.Click += new EventHandler(tmiMoveRouteStation_Click);
cmsOneRout.Items.Add(tmiMoveRouteStation);
ToolStripMenuItem tmiDeleRouteStation = new ToolStripMenuItem("删除飞行站点");
tmiDeleRouteStation.Click += new EventHandler(tmiDeleRouteStation_Click);
cmsOneRout.Items.Add(tmiDeleRouteStation);
}
else if (nodetype == 0)
{
ToolStripMenuItem tmiEditRout = new ToolStripMenuItem("编辑飞行段属性");
tmiEditRout.Click += new EventHandler(tmiEditRout_Click);
cmsOneRout.Items.Add(tmiEditRout);
ToolStripMenuItem tmiDeleteRout = new ToolStripMenuItem("删除飞行段");
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)//编辑飞行段
{
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();
}