Community Blogs

I’ve already posted twice about that little class browser application. The first iteration was mostly declarative and can be found here: http://weblogs.asp.net/bleroy/archive/2009/09/14/building-a-class-browser-with-microsoft-ajax-4-0-preview-5.aspx The second one was entirely imperative and can be found here: http://weblogs.asp.net/bleroy/archive/2009/10/15/entirely-unobtrusive-and-imperative-templates-with-microsoft-ajax-4-preview-6.aspx This new version builds on top of the code for the imperative version and adds the jQuery dependency in an attempt to make the code leaner and simpler. I invite you to refer to the imperative code (included in the archive for this post ) and compare it with the jQuery version, which shows a couple of ways...

Last week, I wrote a post about how the new Microsoft Ajax Library Preview 6 made it a lot easier to write unobtrusive and imperative data-driven applications . Because for the previous preview, I had written a cool little class browser using a declarative style, I thought it would be nice to rewrite this in a completely imperative way. The mistake I made though was to call it unobtrusive. Never mind that ‘unobtrusive’ is a perfectly well-defined word that actually existed way before JavaScript. ‘Unobtrusive JavaScript’ has a very specific meaning that people feel strongly about. To be worthy of that label, an application must basically conform to (at least) those two requirements: Markup and behavior are strictly separated. That means no DOM...

The ASP.NET team today released a significant new update of the Microsoft Ajax Library (Preview 6).  This update includes a bunch of new capabilities and improvements to our client-side AJAX library, and can be used with any version of ASP.NET (including ASP.NET 2.0, 3.5 and 4.0), and can be used in both ASP.NET Web Forms and ASP.NET MVC projects.  Today’s release includes the following feature improvements: Better Imperative Syntax : A new, simplified, code syntax for creating client controls. Client Script Loader : A new client-side script loader that can dynamically load all of the JavaScript files required by a client control or library automatically, and executes the scripts in the right order. Better jQuery Integration : All...

Today is the release of the sixth preview of Microsoft Ajax Library. Don’t get fooled by the somewhat silly and long name: this is a major release in many ways. The scripts have been majorly refactored since preview 5. Check out the other posts out there (links at the bottom of this post) to see just some of the many new features that are in there. Some of my favorite are all the small improvements that have been made to make imperative instantiation of components and templated contents easier than ever. Many of you have told us that you preferred to do things imperatively and this release makes it a lot better. When Preview 5 came out, I built a simple class browser using the declarative syntax. The class browser shows the hierarchy of namespaces...

Earlier today the ASP.NET team launched a new Microsoft Ajax CDN (Content Delivery Network) service that provides caching support for AJAX libraries (including jQuery and ASP.NET AJAX).  The service is available for free, does not require any registration, and can be used for both commercial and non-commercial purposes. What does a CDN provide? Content delivery networks (CDNs) are composed of "edge cache" servers that are strategically placed around the world at key Internet network points.  These "edge cache" servers can be used to cache and deliver all types of content – including images, videos, CSS and JavaScript files. Using a CDN can significantly improve a website's end-user performance, since it enables...

The Microsoft Ajax Library 4.0 Preview 5 is the first release of Microsoft Ajax that I didn’t participate in: I left the team a few months ago. But that doesn’t mean I don’t love what’s in there, and I really do. And by the way I’ve also seen what’s in Preview 6 too and man that will seriously rock. So I thought I’d write a little something to celebrate the new preview. The new features include recursive templates, which is pretty much begging us to implement a treeview with it, and we’ll do just that in this post. There is also an intriguing capability, which enables you to dynamically set what template to render for each data item, and where to render it. At first, this doesn’t look like the most useful thing in the world, but it actually...

Simone has created another survey concerning AJAX usage with ASP.NET. The results are available, now, and it is really interesting to see that there are only small changes in the use of AJAX libraries for ASP.NET developers. The most used Ajax/JS library among .NET developers is jQuery , which is used by the 71,4% of the users. Second comes the Ajax Control Toolkit with 58,8% , followed by the core ASP.NET Ajax library , which is used by 44,8% . The 3 most used libraries are still the same of 2007, just with the opposite order (it was ASP.NET Ajax, the Control Toolkit and then jQuery). He writes more about the results concerning my library: And, despite becoming a dormant project , AJAX.NET Professional lost only 3% of the users. Here are the...

Several people have reported seeing errors in their logs that seem to be due to requests such as this: /ScriptResource.axd?d= [lots of junk] & t=ffffffffee24147c The important part here is the HTML-encoded “&” sequence, which stands for “&” of course. If this exact URL is sent to the server, the server won’t know what to do with the escape sequence (URLs are not supposed to be HTML-encoded on the wire) so the parameters won’t get separated as expected, potentially resulting in a server error. This bug in the toolkit is an example of that: http://ajaxcontroltoolkit.codeplex.com/WorkItem/View.aspx?WorkItemId=13134 Of course, when people see 500 errors popping up in their server logs, they immediately assume the application...

Here is the latest in my link-listing series .  Also check out my ASP.NET Tips, Tricks and Tutorials page and Silverlight Tutorials page for links to popular articles I've done myself in the past.  You can also now follow me on twitter ( @realscottgu ) where I also post links and small posts. ASP.NET Using ASP.NET 3.5’s ListView and DataPager Controls to Delete Data : Scott Mitchell continues his excellent tutorial series on the ASP.NET ListView control. In this article he discusses how to handle deleting data with it. ASP.NET ListView: Displaying Hierarchical Data : Adam Pooler writes about how to use the ASP.NET ListView control to display hierarchical data within a web page. ELMAH: Error Logging Module and Handlers for ASP.NET...

Salutations, Congrats to DiscountASP.NET, once again they have been awared with the "Best Hosting Service" award by asp.netPRO Magazine's 2009 Readers' Choice poll. For the Fifth Consecutive Year ! ;-) As many of you know I have a partnership with DASP, yes I'm the one who creates Webcasts for them, and some for Microsoft too. DiscountASP.NET is a Gold Microsoft Partner. Want to give them a try? I can offer you an honest 6 months free Hosting. . . Go to https://www.discountasp.net/signup Use this...( read more ) Read More...