It sounds as if you're using an existing web and haven't made the changes in
your web.config file that are necessary.
If you create a new asp.net ajax project you'll see some additional items in
it's web.config that you'll need to put in any application that you need.
Add the following to your web.config
<httpHandlers>
<add verb="GET,HEAD" path="ScriptResource.axd"
type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions,
Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
validate="false" />
</httpHandlers>
<httpModules>
<add name="ScriptModule" type="System.Web.Handlers.ScriptModule,
System.Web.Extensions, Version=1.0.61025.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35" />
</httpModules>
--
Hope this helps,
Mark Fitzpatrick
Former Microsoft FrontPage MVP 199?-2006
"Steve Kershaw" <st***********@yahoo.comwrote in message
news:11**********************@r30g2000prh.googlegr oups.com...
Hey,
I have a master.page and a Default.aspx page. I'm trying to use AJAX
to postback to the server. However, when I place the
<asp:ScriptManager ...tag on the Default.aspx page I get an "Element
'ScriptManager' is not a known element. This can occur if there is a
compilation error on the Web site." on the mouse-over.
What is the prblem here? Am I missing something?
Thanks
Steve