Implementing Drag-Drop in ASP.NET AJAX

Several folks requested the source code for the ASP.NET AJAX drag-drop example I alluded to in an earlier blog post. Here are the key parts of it (along with some explanations of how it works) that you can borrow using editor inheritance–I mean, cut-and-paste. The first thing you must do to implement rich drag-drop scenarios in ASP.NET…

Asynchronous ASP.NET Programming

In recent months, I’ve taught a number of classes and conference sessions on what I consider to be one of the most important–and under-documented–topics in ASP.NET: asynchronous programming. It is THE secret to building highly scalable ASP.NET Web sites, and yet I rarely encounter developers who are knowledgeable about ASP.NET’s asynchronous programming models. If you have no…

Drag-Drop in ASP.NET AJAX

One of the most interesting characteristics of ASP.NET AJAX is that the client half (the Microsoft AJAX Library) is full of features not exposed by the server half (the ASP.NET 2.0 AJAX Extensions). A case in point is drag-drop. The DragOverlayExtender control in the ASP.NET AJAX Futures CTP makes it extremely easy to convert static HTML…

Microsoft Publishes Source Code for ASP.NET AJAX

Yep, it’s true. Have you ever wondered how UpdatePanel works its magic? Find out from the source code. You can download an MSI containing the source code here. It even comes with debugging symbols in case you want to step from your own code into ASP.NET AJAX. How cool is that?    

Changes in ASP.NET AJAX RTM Release

I’ve spent a lot of time this week updating ASP.NET AJAX code samples from RC to RTM. I discovered some changes that aren’t documented in the migration guide. One of them in particular cost me several hours of work. First, as the migration guide notes, the AutoCompleteExtender control was moved from the CTP (preview) bits…

ASP.NET AJAX is Here!

In case you didn’t know, ASP.NET AJAX 1.0 just went live on the ASP.NET AJAX Web site. It has finally RTMed!

ASP.NET AJAX Beta 2 Gotcha

I was porting samples from ASP.NET AJAX Beta 1 to Beta 2 today and ran into a problem that I suspect others will run into, too. A custom script file that loaded fine in Beta 1 wouldn’t load in Beta 2. Turns out that Beta 2 adds a new requirement to custom script files for…

ASP.NET Talent Needed

We are busting at the seams with work and working crazy hours trying to meet demand. I’m looking for an ASP.NET person to hire on full-time at Wintellect and help me deal with all the training and consulting requests that are pouring in. Job duties would include, in the following order: 1) Delivering 3- and…