C# DataGridView 中 DataGridViewComboBoxCell 下拉列表框设置选择事件

    private void DataGridView_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {

            if (StoreSwap_Tab_DataGridView.CurrentCell != null && e.Control.GetType() == typeof(DataGridViewComboBoxEditingControl))
            {
                //创建下拉列表框改变事件
                (e.Control as ComboBox).SelectedIndexChanged += new EventHandler(ComboBox_SelectedIndexChanged);
                //创建下拉列表框离开焦点事件 添加该事件是为了删除动态事件 以免多次调用
                (e.Control as ComboBox).Leave += new EventHandler(ComboBox_Leave);
            }
        }
        //离开焦点事件
    private void ComboBox_Leave(object sender, EventArgs e)
        {
            //删除动态调用
            (sender as ComboBox).SelectedIndexChanged -= new EventHandler(ComboBox_SelectedIndexChanged);
            (sender as ComboBox).Leave -= new EventHandler(ComboBox_Leave);
        }
        //下拉列表框改变事件
    private void ComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {

        }