• .NET

    TreeView BringIntoView

    Quite often TreeView is used in scenarios where a particular item should be displayed on the screen. You may want to display some item when the tree is initially shown on the screen or when a new item is added. These scenarios look simple but are a bit tricky because you have to wait until the TreeView loads and then make your desired actions. Waiting for Loaded Event TreeView provides the BringIntoView functionality in several forms: you can call BringIntoView from the tree itself and bring a child item; get some TreeViewItem by calling GetItemByPath and call BringIntoView upon this item container;...
  • .NET

    How to Create Ad Rotator with Telerik TransitionControl and CoverFlow control for Silverlight

    function onSilverlightError(sender, args) { var appSource = ""; if (sender != null && sender != 0) { appSource = sender.getHost().Source; } var errorType = args.ErrorType; var iErrorCode = args.ErrorCode; if (errorType == "ImageError" || errorType == "MediaError") { return; } var errMsg = "Unhandled Error in Silverlight Application " + appSource + "\n" ; errMsg += "Code: "+ iErrorCode + " \n"; errMsg += "Category: " + errorType + " \n"; errMsg += "Message: " + args.ErrorMessage + " \n"; if (errorType == "ParserError") { errMsg += "File: " + args.xamlFile + " \n"; errMsg += "Line: " + args.lineNumber + " \n"; errMsg += "Position: " + args.charPosition + " \n"; } else if (errorType == "RuntimeError") { if (args.lineNumber != 0) { errMsg += "Line: " + args.lineNumber + " \n"; errMsg += "Position: " + args.charPosition + " \n"; } errMsg += "MethodName: " + args.methodName + " \n"; } throw new Error(errMsg); } Today I'm going to show you a very simple way to turn any ContentControl or a ListBox control into an AdRotator control. "What is AdRotator control?", you would ask. A common definition for an AdRotator is a control that lets you to show some data (most commonly ads) and change it periodically. An AdRotator control should be a control that lets you do that out-of-the-box without writing any code. Furthermore, switching the ads with a nice animation will give our AdRotator more polished and glamorous look. To accomplish this, we are going to use RadTransitionControl (a ContentControl) and RadCoverFlow (a ListBox)...
  • .NET

    Why we have built RadDomainDataSource for Silverlight?

    January 03, 2011 Share
    Although Rossen has stated almost all of the things in his introductory blog post about RadDomainDataSource I wanted to create a separate blog entry which answers the most important question that you might be asking: “Why Telerik have developed their own version of a domain data source component?” Here is the answer: We felt your pain We have received numerous forum posts and support tickets stating that you want a codeless approach to data-binding that supports most common data operations without the need for any custom code. During the times when RadDomainDataSource was not available you will have to write hundreds of lines of code in...
  • .NET

    An MVVM Approach to Telerik Domain Services for Silverlight

    December 31, 2010 Share
    There are only about 7 hours we have left in 2010 and this will be my last blog post for this year. For those of you who are not familiar with the new RadDomainDataSource control for Silverlight, here is my introductory blog post. This one describes how to load data with the new control and this one is about performing CRUD. Having read these three blogs might lead you to the next logical question: What about MVVM support? I truly believe that every time someone places an UI element or a control in his view model, a baby kitten dies somewhere. So what can...
  • .NET

    Creating CRUD application with RadDomainDataSource for Silverlight

    December 28, 2010 Share
    I will extend my colleague’s blog post series regarding RadDomainDataSource control with an example how to create simple CRUD (Create, Read, Update and Delete) application. For more information how to load data initially you can take a look at this blog post. Along with RadDomainDataSource control Telerik provides codeless solution for CRUD operations powered by WCF RIA Services. The solution is a combination between RadGridView and RadDomainDataSource.   First let’s create a default Silverlight project as following:     Next step is to create ADO.NET Entity data model called Northwind.edmx. For the sake of the example I’ll create this entity model with a Northwnd.mdf...