Chapter 14 Paging Data with the Listview and DataPager Controls

rmanapul · May 22nd, 2012, 03:13 AM

my application was running fine but when i added this code into the markup

Code:

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
    </ContentTemplate>
</asp:UpdatePanel >

this error showed when i run the application:

Quote:

The control with ID 'UpdatePanel1' requires a ScriptManager on the page. The ScriptManager must appear before any controls that need it.

anybody knows why and can you suggest solutions to fix this? Thanks.

Imar · May 22nd, 2012, 03:18 AM

Hi there,

Which chapter / page number is this referring to? There should be a ScriptManager in the Master Page.

And isn't the error message very explicit about what you need to do?

The control with ID 'UpdatePanel1' requires a ScriptManager on the page. The ScriptManager must appear before any controls that need it.

Quote:

The control with ID 'UpdatePanel1' requires a ScriptManager on the page. The ScriptManager must appear before any controls that need it.

You'll need to add an <asp:ScriptManager /> control to the Page or Master Page, before any controls that use it.

Cheers,

Imar

rmanapul · May 22nd, 2012, 03:24 AM

hmm, i already jumped at the database chapter part of the book (Chapter 12). that is where i started my study in databases. i skipped the earlier chapters so i don't know about the scriptmanager and i didn't encountered it in the Chapters 12-14 where I am right now. the Chapter is Chapter 14, page 521 Try It Out Exercise

Imar · May 22nd, 2012, 03:42 AM

Then do either:

a) Add the ScriptManager as suggested by the error message

b) Read the chapter on AJAX to learn more about why you need the ScriptManager

c) Get the source from an earlier chapter and use that as a starting point.

Cheers.

Imar

rmanapul · May 22nd, 2012, 04:10 AM

ok thanks it worked now. i put the scriptmanager above the updatepanel and it runs now.