1.pls make certain that the usercontrol page do not contain any form tag like '<form id=~~ runat=server>2.check page_load event of the user~~.ascx.cs void Page_Load(object sender, System.EventArgs e)
{
}
{
}
if(!IsPostBack){}里面而是不管是不是回发都要加载private void Page_Load(object sender, System.EventArgs e)
{
MyUserControl u = (MyUserControl)LoadControl(@"MyControl.ascx");
...//绑定控件的事件
...//给控件复初值
holder.Controls.Add(u);
if (!IsPostBack)
{
...
}
}在这儿写代码真累呀^_^