Tip #74: Did you know.How to Add and Remove AJAX Extenders in Visual Studio 2008 Designer?

Tip#62 showed you how to add an AJAX Control Toolkit to your Toolbox.

Once you have the toolkit here is how you proceed:

1. Switch to Design View of the page and drag drop ScriptManager control from the AJAX Extensions tab of toolbox to the designer.

2. Drag drop an asp button control to the designer to which you would want to add the extender.</...Full Article.