Telerik blogs

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  • Release

    New Themes – New Benefits

    We believe that working hard on something can be great fun at the end when everything is done and the seeds have resulted in the sweetest fruits. This is the case with the new Theming Mechanism and the new Visual Style Builder which we introduced as of Q1 2010.   I am not going to dive into any details on the new concepts behind all this stuff, but will simply focus on the numbers: both in terms of loading speed and memory usage. As you may already know, the new approach we use to style our controls uses the so called Style...
    March 22, 2010 2 min read
  • Web

    Task-It Webinar - Building a real-world application with RadControls for Silverlight 4

    Yesterday I held a live webinar on Building a real-world application with RadControls for Silverlight 4. Thank you to all of those that attended, but if you did not have a chance to catch it, you can watch a recorded version here: Building a real-world application with RadControls for Silverlight 4 I wasn't able to get too deep into the inner workings of the app because of time limitations, but over the upcoming weeks I will dig deeper in my blog posts, and potentially some videos. FYI, I just put up a new blog post where I provide a link to download the source...
    March 20, 2010 1 min read
  • Release

    Mix10 is in history, Windows Phone 7 is here!

    MIX10 was really a fantastic conference for Telerik! We had great talks, many customers stopped by our booth and we've got a lot of great feedback for our Silverlight Controls. Thank you for stopping by and sharing your opinion! So now, that the MIX is over, there is one question left: What Telerik will develop for the Windows Phone 7? We had this question on the booth over and over again and it is no doubt that the WP7 development is a hot topic now. All we can say at this moment is that Yes, we are looking into this and we actually have some of...
    March 19, 2010 2 min read
  • Web

    Telerik announces native controls for Silverlight 4 Release Candidate.

    Right after the official release of Silverlight 4 Release Candidate (at MIX) Telerik has prepared for you a native build of RadControls for Silverlight that are built on the latest platform’s release. The download can be found under the users’ accounts or as part of the Latest Internal Build. The download files are clearly marked with RadControls for Silverlight 4 RC. We will keep on updating the files with each Latest Internal Build. The RadControls for Silverlight 4 RC is still a preview version of RadControls for Silverlight 4 that will become official as soon as Microsoft announces the RTW version of Silverlight...
    March 18, 2010 1 min read
  • Web

    MEF to the rescue in Task-it

    Task-It Series This post is part of a series of blog posts and videos about the Task-It (task management) application that I have been building with Silverlight 4 and Telerik's RadControls for Silverlight 4. For a full index of these resources, please go here. One of the posts listed in the index provides a full source download for the application. Intro to MEF One of the frameworks that I chose to leverage in the development of my Silverlight 4 Task-It application is MEF, the Managed Extensibility Framework. Actually, that decision came while I was at a Silverlight ‘Deep Dive’ session on the Microsoft campus in Redmond, WA, and...
    March 17, 2010 3 min read
  • Web

    Changing Silverlight application themes at runtime

    We have received a lot of questions how can the application theme be changed at run time. The most important thing here to mark is that each time the application theme is changed all the controls should be re-drawn. Without going into too much detail, we could explain the application themes as a mechanism to replace the content of the Generic.xaml file in every loaded Telerik assembly at runtime. This does not affect the controls that already have default style applied, hence the need to create new instances. Because in the Silverlight applications the RootVisual cannot be changed at run time, we...
    March 17, 2010 2 min read
  • Web ASP.NET AJAX

    Common reasons for the ‘Sys is undefined’ error in ASP.NET Ajax applications

      In this blog I will try to summarize the most common reasons for getting the famous 'Sys is undefined' error when running an Ajax enabled web site or application (there are almost one million results on Google for that phrase). Where does it come from? In every Ajax web page’s source you will see a code like this: <script type="text/javascript"> //<![CDATA[ Sys.WebForms.PageRequestManager._initialize('ScriptManager1', document.getElementById('form1')); Sys.WebForms.PageRequestManager.getInstance()._updateControls([], [], [],...
    March 16, 2010 3 min read
  • Release

    Telerik is First to Announce Support for Microsoft Silverlight Analytics Framework

    Yesterday at MIX 10 conference Microsoft announced the Microsoft Silverlight Analytics Framework Beta. The Silverlight Analytics Framework (SAF) is a new open-source framework to allow designers and developers to integrate web analytics into Silverlight applications in a consistent manner. Supporting out-of-browser and offline scenarios, Microsoft built this framework in conjunction with a number of web analytics services and control vendors to support multiple analytics services simultaneously without degrading application performance. Because the SAF is enabled as a set of behaviors in Microsoft Expression Blend, designers and developers can visually instrument their designs and configure A/B testing rapidly without...
    March 16, 2010 2 min read
  • Desktop WPF

    Restyling RadDataPager for WPF and Silverlight

      A small but powerful control has joined the great family of Telerik XAML controls with the recent release. RadDataPager is a result of an increasing demand from our customers who needed to work with large amounts of server data presented in small portions at the client side.  The primary goal was to make a powerful data paging control to be used in any scenarios requiring getting and presenting portions of data. How good is RadDataPager in working with paged data you can see in Rossen's announcement. Yet being a XAML control it challenged us...
    March 16, 2010 2 min read
  • Release

    Introducing Task-It. A real-world application using RadControls for Silverlight 4

    Task-It Series This post is part of a series of blog posts and videos about the Task-It (task management) application that I have been building with Silverlight 4 and Telerik's RadControls for Silverlight 4. For a full index of these resources, please go here. One of the posts listed in the index provides a full source download for the application. Introduction This is the first in a series of blog posts based around an application called Task-It that I have developed in Silverlight 4. Task-It is real-world application designed for people that need a simple way to manage the numerous tasks that we all strive to accomplish on...
    March 15, 2010 8 min read