I tried to install the AJAX control tooklkit and received this error.

There was an error loading types from assembly 'C:\...\Visual Studio 2005\Templates\ProjectTemplates\Visual Web Developer\CSharp\\AjaxControlToolkit.dll'

'Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.'

I downloaded the version for .NET 2.0, ASP.NET AJAX 1.0 and VS2005, no source code.

The instructions for installing the toolkit are minimal at best. Is there a way to make this thing work?

 Thanks for any help

Steve

Well, I read some more posts in the forum and found out that I forgot an important step in the process. That was making sure I had the extensions 1.0 installed first. So now the sample web site works great.

Is the only way to use the controls is to build a new site using the template or can an existing site convert easily to using them?

Thanks

You should only need to modify your web.config file to make an existing site MS AJAXified. There are some instructions on what needs to change here:

 http://www.asp.net/ajax/documentation/live/InstallingASPNETAJAX.aspx which I think is still current if you're using VS2005 with.NET 2.0 (as opposed to VS2008 with .NET 3.5).

In any case, personally I would create a new AJAX site and then compare the generated web.config file with my existing site web.config file, using a Text Diff tool (I use Notepad++ with the Compare Plugin... all free!).

You will also need to add Script Managers to any pages which will be using AJAX.

Thanks for the info...I will give that a try.