You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 
3.5. 
You create two user controls named UserCtrlA.ascx and UserCtrlB.ascx. The user controls postback to the server. 
You create a new Web page that has the following ASPX code. 

You need to ensure that the user control that is displayed meets the following requirements: ¡¤It is recreated during postback 
¡¤It retains its state. 
Which method should you add to the Web page?（）

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 
3.5. 
Your application has a user control named UserCtrl.ascx. You write the following code fragment to create a Web page named Default.aspx.

You need to dynamically add the UserCtrl.ascx control between the lblHeader and lblFooter Label | English | Chinese | Japan | Korean | - 11 - Test Information Co., Ltd. All rights reserved. controls. 
What should you do?（）