One of the new features of the chart control for the Q2 Beta2 release is an API for behaviors. We decided do decouple the chart from some of its features and make them separate objects for the usual software development reasons. Now RadChart has a Behaviors collection that accepts ChartBehavior objects. Whenever an object is added to or removed from this collection a feature is either enabled or disabled in a RadChart instance respectively. We provide three behaviors out of the box and these are ChartPanAndZoomBehavior, ChartTrackballBehavior and ChartToolTipBehavior. The tooltip behavior allows the chart to show a tooltip wherever the user taps...

I like agile user stories. They make sense to me. 15 years ago – I wrote a lot of “Use Cases”. As use cases seemed to have some components I liked – they frightened and intimidated me - I found that as use cases would gradually become more complicated and cumbersome to write – I spent all my time writing, debugging, and maintaining them – yet, I found I was still not communicating with my customer or my development team very well. Quality didn’t improve. We still were at risk of building the wrong product. Agile User ...

Recently there was a feature request for out-of-the-box support for a ToolTip while dragging any of RadSlider's thumbs. Since we don't provide one yet we decided to check whether it is possible to accomplish this scenario with the current implementation of RadSlider. It turned out that it was actually quite trivial. Few attached properties, a little bit of knowledge about tooltips in Silverlight and voila! Below is the class that does all the magic. It is pretty self explanatory. public class SliderToolTipExtensions : DependencyObject {     private static string SingleThumbName = "SingleThumbHost";     private static string RangeStartThumb = "RangeStartThumb";     private static string RangeEndThumb = "RangeEndThumb";       private static string ValuePropertyPath = "Value";     private static string SelectionStartPropertyPath =...

Having the ability to quickly, and easily, present an important piece of information to your users is very important. However, having a huge window or a JavaScript alert popup appear in the middle of the screen certainly isn’t too discrete and can end up annoying the user. This is why we created the RadNotification control. This new component allows you to have a similar popup to what you might already be used to from Outlook, a quick box that appears somewhere on the screens and then later disappears. In this blog post we will take a look at this new...

Have you ever searched for a quick and simple way to notify your users that something new is going on? Or just to show them some status message upon specific condition or time interval? This is now pretty easy to achieve with the new RadNotification control which joins RadControls for ASP NET AJAX suite in the Q2 2011 release! Until now, you could achieve the same effect by using some popup in multiple approaches but you will always need to add a timer, load on demand code, server script or something else, depending on the exact requirements and that is why...