Ajax Tutorials

Welcome to a series of tutorials about ASP.NET AJAX, which explores techniques in building ASP.NET AJAX applications.

Perhaps the most visible feature of the ASP.NET AJAX Extensions is the ability to do a partial or incremental page updates without doing a full postback to the server, with no code changes and minimal markup changes. Download Understanding Partial Page Updates with ASP.NET AJAX article.

When working in the markup editor in Visual Studio, you may notice (from IntelliSense) that there are two child elements of an UpdatePanel control. One of which is the Triggers element, which specifies the controls on the page (or the user control, if you are using one) that will trigger a partial render of the UpdatePanel control in which the element resides. Download Understanding ASP.NET AJAX UpdatePanel Triggers article.