• .NET

    What’s new with RadGanttView for Silverlight and WPF in Q2.2012

    by Miroslav Nedyalkov Moving forward to BETA After one Q in CTP stage the RadGanttView control is now BETA. This means that most of the core features are already implemented and the rest of the features we are going to add are considered marginal and will not affect its internal architecture neither its API a lot. We reconsidered the public API of the data objects (IGanttTask) and did some changes which we believe will enhance the experience of the control. What’s new? We developed some core features which add greater interaction to RadGanttView: Drag & drop – the user is now able to drag and resize...
  • .NET

    Using the Multiple Selection of the RadCalendar control for Silverlight and WPF with MVVM

    Developing and supporting MVVM applications is easy and effective. That's why we want to create MVVM applications that follow this pattern. Sometimes the controls we use have some limitations. For example, list properties, which are read-only and do not allow us to create an appropriate binding to our view-models. It is normal for properties of list type to be read-only, because this is considered a good practice, but it becomes a problem for the MVVM pattern. In the ItemsControl this problem is solved with two properties - Items and ItemsSource. This blog post is about an example that demonstrates how to create...
  • .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

    UI Virtualization in CoverFlow for Silverlight

        While we are still on the crest of a performance wave, I want to spend some time to introduce the power of UI Virtualization in CoverFlow for Silverlight coming with our 2010 Q1 release.     The two most common scenarios for using a CoverFlow is either to create a navigation menu that features a small number of items, or to build a browsing control for images or videos that can feature up to a million items. The first case is quiet straight-forward. For a navigation control you generally have no more than 10-12 items which are handled with ease in...
  • .NET

    Vertical Orientation of CoverFlow for Silverlight

        The feedback about our new version of CoverFlow for Silverlight has been great! Thank you guys for pointing out all these small issues and problems that had to be polished since we introduced a new beta CoverFlow for Silverlight 3 back in September. After the core functionality of the control is successfully integrated in our Silverlight 3 suite, we are now able to start developing new features that every grown-up CoverFlow control should possess :) Vertical Orientation     Both in our forum and support system we have received numerous requests for vertical orientation of the CoverFlow control. That is why, with our 2009...