If you have tried the new grid control (ListView) in Visual Studio .NET
Orcas Beta1, you may have noticed that the control has to be registered
within the page. To get around this, I had to do two things:
the System.Web.Extensions assembly with the project. Apparently, this
assembly is not registered with the projects by default.
Add the <add
assembly="System.Web.Extensions, Version=184.108.40.206, Culture=neutral,
PublicKeyToken=31BF3856AD364E35" /> entry to the pages ->
controls section of the web.config file. Once I did these two items, I
got my intellisense and I didn't have to worry with the registration
commands on every page.