Building Interactive User Interfaces with Microsoft ASP.NET AJAX: Refreshing An UpdatePanel With JavaScript

Over the past several years web developers have started using JavaScript to make asynchronous postbacks to the web server that only transmit and receive the necessary data; these techniques are commonly referred to as AJAX.

Microsoft has released a free AJAX framework for ASP.NET developers named Microsoft ASP.NET AJAX. This article series examines using Microsoft’s ASP.NET AJAX framework to build responsive user interfaces.

AJAX Basics and Getting Started with Microsoft’s ASP.NET AJAX Framework – examines AJAX basics and looks atinstalling Microsoft ASP.NET AJAX; includes a demo of the UpdatePanel control. Using the UpdatePanel – provides more in-depth and real-worldexamples of using the UpdatePanel.

Providing Visual Feedback with the UpdateProgress Control – shows how to use the UpdateProgress control to display visual feedback to the user when a partial page postback is in progress. Performing Client Actions in Response to Partial Page Postbacks – learn how to execute client-side script in response to events raised by the partial page postback life-cycle.

Using the Timer Control – see how to asynchronously update a portion of the screen every n milliseconds.Enabling Bookmarking and the Browser’s Back Button – learn how to add history points to an AJAX-enabled web page so that your visitors can use their browsers’ Back and Forward buttonsand bookmarks.

Retrieving Server-Side Data Using Web Services – call Web Services from an ASP.NET AJAX application with a sprinkle of JavaScript.A Look at JSON Serialization – explore the serialization format used by the ASP.NET AJAX Framework when calling Web Services from client-side script.

Triggering Full Page Postbacks From An UpdatePanel – learn how to override an UpdatePanel’s default behavior and trigger a full page postback.Refreshing An UpdatePanel With JavaScript – see how to refresh the contents of an UpdatePanel via JavaScript.

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