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  • Web ASP.NET AJAX

    Hierarchical data sources and RadControls

    In his recent post Bertrand Le Roy announced that he migrated his ObjectHierarchicalDataSource and CompositeHierarchicalDataSource controls from GotDotNet to CodePlex. I just downloaded the sample projects and tried binding RadMenu and RadTreeView to those data source controls. Everything went according to plan: I’ve made two demo web sites – ObjectHierarchicalDataSource.zip and CompositeHierarchicalDataSource.zip. Feel free to check them...
    May 27, 2021 1 min read
  • Web ASP.NET AJAX

    Say hello to RadControls Prometheus Futures

    I am glad to announce that we have just released a "Futures" version of RadControls Prometheus. Why "Futures"? I will tell you in detail below, but those of you who are anxious to get their hands on the latest release, can download it from here: http://www.telerik.com/community/forums/thread/b311D-mhkha.aspxWhat's new in the "Futures" release? The highly anticipated RadScheduler. Those of you who had the chance to visit our TechEd booth may have already seen it. For those who haven't - here is a link to the online examples: http://www.telerik.com/demos/aspnet/prometheus-futures/Scheduler/Examples/Default/DefaultCS.aspxKey features: Day, Week and Month View Inline and Advanced editing of appointments Custom resources Recurring appointments Rich client-side behavior The RadScheduler...
    July 05, 2007 3 min read
  • Web ASP.NET AJAX

    Firewalls breaking ASP.NET AJAX!

    This one is serious and may bite you any time. Yesterday Shaun posted this problem in our forums: he and his users were experiencing odd errors when requesting ASP.NET AJAX-based sites, and yes, that means RadControls "Prometheus" based ones as well. Partial rendering requests initiated by UpdatePanel controls failed with the cryptic message: ============== Sys.WebForms.PageRequestManagerParserErrorExeption: The message received from the server could not be parsed.  Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.  Details:  Error parsing near '<!DOCTYPE html P''. ============== Of course all that comes without any trace of Response.Write(),...
    June 25, 2007 2 min read
  • 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...
    May 27, 2021 3 min read
  • 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...
    May 27, 2021 3 min read