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 ...

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 ...

A common scenario when using the ScheduleView control is to have custom appointments with additional properties that are not by default included in the standard Appointment class. In these cases simply extending the Appointment class is not enough, because we have some more requirements – we want our custom properties to support cancelation of editing (like the standard one does), we want to allow the user to edit the custom properties using the Appointment edit dialog and eventually to render values of the custom properties in the AppointmentItem or/and its ToolTip.

In this article we will go through the ...

Prism can be thought of as a set of libraries that help Silverlight applications to be scalable and testable. It has a number of features (modularity, view regions and commanding) that help with this. A common scenario is to use Prism with a Docking control. You may want to create a shell with a Docking control and to mark some of the pane groups as regions and to use panes (or their content) as views.

In this article we will create a sample application that accomplishes this scenario with the RadDocking control for Silverlight. We will need one additional ...

It is often necessary to customize the header of a RadPane. Really common is to need to put an image in the header, to bind that image to a property, etc. There are many scenarios in which you need to add some custom behavior to the header. One of this situations is when you need to have close button or another button in the header of the pane. The tricky thing here is that you need to implement an event handler for the Click event of the button and to write some code that will do something with the ...

We all know that animations are making our applications look more slick. As Silverlight and WPF are platforms that have great support for animations, we want our Silverlight and WPF applications to be more animated and look better.

Today I will show you how to add animations support to the Telerik RadWindow control using one of the most powerful approaches in WPF and Silverlight for extending the functionality of existing components – the attached behavior. We will create two attached properties that take care to run the animations when needed. The good thing is that you can use ...

Usually, when you use docking manager you want to be able to re-open the closed panes. This looks as simple as setting the IsHidden property of the pane to False. However, this does not cover all the cases. The pane might be in a ToolWindow and this ToolWindow might be closed by its X button. In this case, the pane would not be hidden, but it would not be visible either as it is in the hidden window.

Another approach might be closing the last pane in a ToolWindow, thus triggering closing the window, too. In this case the ...

Quite often the users might want to save and then restore the layout they have previously left when closing an application that uses any kind of docking layout management. The powerful Save/Load layout mechanism of Telerik RadDocking enables such users to accomplish this task in an absolutely straight-forward manner. The developers building the application can use the advanced API of the control and implement the needed logic with just a few lines of code.

The example below demonstrates how to persist the panes’ position in a Weather Forecast Browser built specifically for this blog post.

This is the first of ...