Couldn't load Ajax Controls into SmartPart

Sep 30, 2008 at 8:18 PM
Couldn't load Ajax Controls into SmartPart. I got this error.

Error: unable to load ~\/UserControls\AJAXHelloSmartPart.ascx
Details: Unknown server tag 'asp:UpdatePanel'.

Can any one plz help me.
Thanks

Apr 14, 2009 at 12:39 AM
Add the <add> tag to your web.config file in the location below:

<system.web>

<pages>

<

controls>

 

<

add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>

</

controls>

 

</

pages>

</

system.web>