【求助】MDI窗口右键删除指定的控件问题

Label newLabel = new Label();
newLabel.ContextMenuStrip = this.contextMenuStrip1;
newLabel.MouseDown += new MouseEventHandler(newControl_MouseDown);

        void newControl_MouseDown(object sender, MouseEventArgs e)//事件中增加鼠标点击就聚焦到该控件
        {
            if (sender.GetType() == typeof(Button))
            {
                Button currentButton =(Button)sender;
                if (null == currentButton)
                    return;
                currentButton.Focus();
            }
            else
            {
                Label currentLabel = (Label)sender;
                if (null == currentLabel)
                    return;
                currentLabel.Focus();
            }
        }

删除的按钮的代码是
        private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)//删除获得焦点的控件
        {
            Form currentMdiForm = this.ActiveMdiChild;
            this.Controls.Remove(currentMdiForm.ActiveControl);
        }

调试的时候没有反应不能删除MdI窗口的选中的控件不知道为何？请各位指教 --------------------编程问答-------------------- 顶~~~~~~~~~~~~~~~~ --------------------编程问答-------------------- 软件不做了放弃了

补充：.NET技术 ,  C#