动态加载控件

1.查找控件 Control[] ctrls = Panel1.Controls.Find("txtName", true);

2.移除控件 Panel1.Controls.Remove(ctrls[0])

3.添加控件 Panel1.Controls.Add(txtName);

4.uc向form传值(this.Parent..Controls.Find("lblName", true)[0] as LabelControl).Text = "test";