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ScriptManager's EnablePartialRendering and SupportsPartialRendering properties

In ASP.NET AJAX's ScriptManager control there are two properties that seem quite similar, but are in fact very different: namespace System.Web.UI { public class ScriptManager : Control { public bool EnablePartialRendering { get ; set ; } public bool SupportsPartialRendering...
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Why don't file uploads work during async postbacks?

As many people have noticed in their AJAX-enabled pages, file uploads do not work when doing an async postback. To my knowledge there's no way to support this scenario due to the browser's security restrictions. To understand why the upload doesn't work...
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Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it

If you've used the Microsoft ASP.NET AJAX UpdatePanel control, there's a good chance you've hit the "Sys.WebForms.PageRequestManagerParserErrorException" error. What's a PageRequestManagerParserErrorException? The UpdatePanel...
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ASP.NET AJAX JavaScript Class Browser (take 3)

By popular demand, I am releasing another update to the ASP.NET AJAX Class Browser. The new features: Support for ASP.NET AJAX 1.0 Added icons to TreeView to indicate interface/class/enum/flags I tested it on these browsers: IE 6.0 Firefox 2.0.0.1 Safari...
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ASP.NET AJAX JavaScript Class Browser (take 2)

Updated on 2//22/2007: New version available here: ASP.NET AJAX JavaScript Class Browser (take 3) I've read all the great feedback on the first release of the class browser and I've made some updates and fixes. First, I've added FireFox support...
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ASP.NET AJAX JavaScript Class Browser

As part of an exercise in app building, as well as an exercise in doing useful stuff, I wrote a class browser to inspect the ASP.NET AJAX client libraries. It's a simple ASP.NET-based app, though most of the code is client-side. Free download available!...
Posted by Eilon | 14 comment(s)
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HOWTO: Write controls compatible with UpdatePanel without linking to the ASP.NET AJAX DLL

This is another repost from a post I made to the ASP.NET Forums : Buying Into Microsoft ASP.NET AJAX without Necessarily Paying For It By Eilon Lipton, Software Design Engineer on Microsoft ASP.NET AJAX Abstract Without the release of Microsoft ASP.NET...
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What's up with UpdatePanels and how come nothing works? Or: A brief explanation of how UpdatePanel works by the guy who wrote the feature. (Long!)

This is a repost from a post I made to the ASP.NET Forums : Intro: With the recent Microsoft ASP.NET AJAX Extensions release there has been a lot of feedback, both positive and negative, about the changes made to UpdatePanels. The feedback has ranged...
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TechEd 2006 Barcelona slides and code

Slides and code from our TechEd talk on Building a Complete Web Application are available from Matt's blog post . Thanks to everyone who attended our talk!
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