Part III: Why, When, and What Download the easy to read PDF version (includes Trivia not in online version)In parts one and two in this series on Ajax we examined in detail how Ajax communication works and how JavaScript is used to update the page after an Ajax callback. We looked at some of the specific ways RadAjax and ASP.NET AJAX handle Ajax operations and, in short, removed (or at least greatly reduced) the mystery of how these frameworks do their magic. In this installment, we’ll move past the “how” and “where” of Ajax and start to look at the “why”, “when”, and “what” (I don’t think we have...

Below is a summary of the new online resources available for our ASP.NET controls:RadGrid Code library entries: Calculating group totals:http://www.telerik.com/community/code-library/submission/b311D-tktck.aspx Calculated column with total in the footer:http://www.telerik.com/community/code-library/submission/b311D-tgcde.aspx Update/Insert/Delete with stored procedures and SqlDataSource control:http://www.telerik.com/community/code-library/submission/b311D-tgcgc.aspx Update/Insert/Delete in DataSourcePersistenceMode = NoPersistencehttp://www.telerik.com/community/code-library/submission/b311D-tgtkd.aspx Help topics: Customize the insert form display position with paging enabled:http://www.telerik.com/help/aspnet/grid/?grdCustomizeInsertFormPosition.html Localization/Accessibility -> How-to -> Navigate through single grid at a time with keyboard navigation enabled (not uploaded yet)

I have been too slow to get to this! The security experts at Fortify Software have recently discovered a new Web 2.0-specific security vulnerability that may affect some sites passing JSON-encoded data to the client, and I got some nudges from both coworkers and customers to investigate this deeper. So, what is this vulnerability all about? In short, you have to be extra careful when using HTTP GET requests to stream JSON-encoded data to the client. You may be thinking that you are using ASP.NET's authentication mechanism and you are conveniently hidden behind the session and forms authentication cookie, but that may not be...

Howdy geeks! No, it's not Christmas time, but we have a nice present wrapped up for you :) For the ones out there like me who enjoy all sorts of gizmos – check it out: http://converter.telerik.com/ the cool new service offered from the telerik labs free of charge for everyone. I was wondering how to best describe the idea, but Todd seems to do a better job: Code Converter is a free and simple VB to C# and C# to VB code converter. While there are several other good code converters available, none are perfect. Some are buried in busy websites. Some are awkward...

For those of you who are not subscribed to my Telerik Watch blog, I want to bring your attention to some important news. The Ajax Manager WebCast that I'll be doing with Microsoft this week is already full! Clearly everyone is eager to see the latest from Telerik and how we're embracing ASP.NET AJAX and I want to thank everyone for making this WebCast an early success. The good news for those of you who did not register in time is that the entire event will be available on demand sometime next week. For full details on accessing the on...