Telerik blogs
  • Release

    New online resources for the past two weeks (07/02/2007 - 07/15/2007)

    Below is a summary of the new online resources available for our ASP.NET controls: RadInputHelp topics: How-to -> Set focus on RadInput controls - not uploaded yet How-to -> Get and set values in RadInput controls (client-side) - not uploaded yet Resolve RadInput flickering in Ajax scenarios under Firefox - not uploaded yet General functionality -> Data-Binding - not uploaded yet
  • 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...
  • Web

    ScriptResource.axd and and assemblies built in the future

    Here is something I didn't know until recently:If you have a ScriptControl whose JavaScript files are web resources (served through ScriptResource.axd instead of WebResource.axd) and the date of the assembly is in the future, that very JavaScript file will fail to load. I have attached a test solution to illustrate the case - AssemblyInTheFuture.zip. Build it and run the Default.aspx page - everything is fine and a nasty alert saying "initialize" pops out. Now change the date of your PC - set it to yesterday. Stop ASP.NET Development server to reset the script resource cache dependency. Open Default.aspx again (but...
  • 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...
  • 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(),...