There is a new SharePoint video from the Ted Pattison Group on the Microsoft Downloads. The video gives a real world example of how to build web parts for SharePoint as user controls that utilize AJAX.
Overview:
Learn about building Office SharePoint Server Web Parts with user controls and AJAX. Walk through a real-world example of separating your UI from your code-behind, using user controls to create input panels. Also, learn about using the AJAX update panel.
You can download and watch the video, by clicking here.
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