为什么委托函数多次执行？

shuizhuyupian 2010-08-20 12:08:52

如题
：
定义了
private ContextMenuStrip m_menuEdit = new ContextMenuStrip();

//弹出操作菜单
m_menuEdit.Show(MousePosition.X, MousePosition.Y);
m_menuEdit.ItemClicked += new ToolStripItemClickedEventHandler(m_menuEdit_ItemClick);

private void m_menuEdit_ItemClick(object sender, ToolStripItemClickedEventArgs e)
{
if (((ContextMenuStrip)sender).Items[0] == e.ClickedItem)
{
m_DataGridViewPoint.Rows.Remove(m_DataGridViewPoint.CurrentRow);
}
}

奇怪的是，为什么我点击右键弹出菜单的相关选项，m_menuEdit_ItemClick为执行好几次呢？导致m_DataGridViewPoint删除了好几行，大家帮帮忙解释下，怎么解决啊？

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shuizhuyupian 2010-08-20

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谢谢大家，4 5 6楼正解

cc_net 2010-08-20

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弹出一次你就绑定了一次事件，按道理应该是第N次弹出，就执行N次

happyer_longlong 2010-08-20

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m_menuEdit.ItemClicked += new ToolStripItemClickedEventHandler(m_menuEdit_ItemClick)
弹出一次你增加一次当然多次可

jointan 2010-08-20

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你应该把:m_menuEdit.ItemClicked += new ToolStripItemClickedEventHandler(m_menuEdit_ItemClick);
放到窗体构造函数的最后

        public Form1()

        {

            InitializeComponent();

            m_menuEdit.ItemClicked += new ToolStripItemClickedEventHandler(m_menuEdit_ItemClick);



        }

m_menuEdit.Show后,不需要在重新执行m_menuEdit.ItemClicked +=...

shuizhuyupian 2010-08-20