• .NET

    RadTreeView's TriState Mode in Deep

    Many of you have probably used Telerik's TreeView or going to do so in the future. One of its many features is the TriStateMode. In this blog post I'm going to explain how TriStateMode mode is designed to work and propagate the values up and down the tree. When in TriStateMode (IsTriStateMode=”True”) checking/unchecking an item makes the TreeView propagate the value. The value propagation actually checks/unchecks all items’ children and updates the chain of parents with appropriate value (checked, unchecked or undetermined). CheckState vs. IsChecked The TreeView exposes two properties used to manipulate items' check state - CheckState (of type ToggleState) and IsChecked...
    November 19, 2010
  • .NET

    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 19, 2010
  • .NET

    Using RadTreeView for WPF

    The video below is from a webinar that I presented on the RadTreeView for WPF.  The webinar covered some of the basic functionality of the RadTreeView and should give you a good understanding of how to get started with the RadTreeView.  While this webinar is focused on the WPF version of the RadTreeView control, the content is also relevant to the Silverlight version as...
    May 01, 2009
  • .NET Mobile

    Two New RadTips Episodes: RadGrid, Entity Framework, and More!

    I’m happy to announce two new episode of RadTips, a series of screencasts offering tips and tricks for using Telerik's RadControls. If you've missed previous episodes, be sure to check them out on Telerik TV. Each is only a few minutes long and covers a specific feature of the RadControls. Adding a HeaderContextMenu to the RadGrid for ASP.NET AJAX In this episode I show ASP.NET AJAX developers how to use the HeaderContextMenu to perform column-specific operations in the RadGrid. Click here to watch on Telerik TV The video is available for download below. [Video: MP4] Using the Entity Framework with the RadControls for ASP.NET AJAX In this...
  • .NET Mobile

    RadTreeView for ASP.NET Ajax - Binding to LinqDataSource

    Since the Q2 2008 SP1 release RadTreeView, RadMenu, RadPanelBar and RadTabStrip support hierarchical databinding to the LinqDataSource control. In this blog post I will demonstrate how to do this with RadTreeView (the steps are identical for the aforementioned controls). Create a new Web Site in Visual Studio 2008 and copy the Northwind database in your App_Data folder Add a new "Linq to SQL classes" item named "Northwind.dbml"
    October 01, 2008