Microsoft JScript runtime error: Sys.InvalidOperationException: Two components with the same id

I'm working in ASP .NET dynamic data.

In one of my edit controls I wanted to allow the user to add records from a related table to the current page. (Literally, if you are on the orders page, you would be allowed to add a new customer to the system on this page as well, and then associate it with that order). So, I have a DetailsView set to InsertMode, nested inside of an UpdatePanel, which is shown by a ModalPopupExtender which is invoked when 'add new' is clicked. This doohickey works the first time i execute this process, that is, a customer is added (and i update the dropdown list as well).

However, I realized it didn't work (properly) again until I refreshed the entire page. When I attached my debugger, my worst fears were realized (ok, not really). But an exception was being thrown: "Microsoft J开发者_如何学JAVAScript runtime error: Sys.InvalidOperationException: Two components with the same id." Which seemed to be complaining about a Calendar Extender Control that is part of the details view.

Any guidance on what's going on here would be great. Thanks.

have a look at my popup control A Popup Insert control for Dynamic Data I built it for just that purpose.

I was working on a search from a textbox and encountered this error after postback. UpdateMode="Conditional" on the UpdatePanel worked for me.

Hello I got The Solution,

add ScriptMode="Release" in ScriptManager of Page like that

<asp:ScriptManager ID="ScriptManager1" runat="server" AsyncPostBackTimeout="0" ScriptMode="Release"
        EnablePartialRendering="true" EnablePageMethods="true">
</asp:ScriptManager>