Telerik blogs

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  • Web ASP.NET AJAX

    RadInput 2.0 and Date Parsing: Where Compiler Theory Meets User Needs

    Todd beat me to releasing details on our Q1_2007 release, but here it is again: we are finally releasing an update to the RadInput product: RadInput 2.0!!! The new version will include three brand new controls: RadTextBox: a nice, skinnable <asp:TextBox> replacement control that will help you build slick-looking applications; RadNumericTextBox: a textbox control, specifically created for numeric data entry: think quantities, currency, percentages; RadDateInput: a completely rewritten version of the v1.x RadDateInput control that takes a different approach to date entry. My favorite is RadDateInput as it posed...
    April 20, 2007
  • Web

    The Ajax Papers: Part III

    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...
    April 16, 2007
  • Web ASP.NET AJAX

    Security: JSON Hijacking and the telerik web controls

    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...
    April 05, 2007
  • Web ASP.NET AJAX

    Ajax Manager WebCast Full

    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...
    March 27, 2007
  • Web ASP.NET AJAX

    Debugging ASP.NET 2.0 Web Resources: Decrypting the URL and Getting the Resource Name

    Today I had another trivial problem that was unbelievably hard to debug just because I could not tell that an error caused by a web resource was caused by exactly that resource. I was dealing with a forgotten [WebResource] attribute that did not have a matching resource built in the assembly and both generated a server side exception and gave browsers a 404 HTTP error. I wanted to decrypt the query string data that was being passed to WebResource.axd and extract the resource and assembly name from it. MSDN told me that what I needed was the "d" query string parameter, as it contained the encrypted assembly and resource name. The...
    March 27, 2007