动态添加UpdatePannel

aspx

     < form id = " form1 "  runat = " server " >
         < asp:ScriptManager ID = " ScriptManager1 "  runat = " server " >
         </ asp:ScriptManager >

     </ form >

cs

     protected   void  Page_Load( object  sender, EventArgs e)
    {
        UpdatePanel up  =   new  UpdatePanel();
        up.ID  =   " UpdatePanel1 " ;
         this .Form.Controls.Add(up);

        LiteralControl lc  =   new  LiteralControl(DateTime.Now.ToString());
        up.ContentTemplateContainer.Controls.Add(lc);

        Button btn  =   new  Button();
        btn.Text  =   " Refresh " ;
        up.ContentTemplateContainer.Controls.Add(btn);
    }