Sometime we need to show a circular loader in WPF and/or Silverlight. We may need it in Windows Phone 7 too. In simple statement, we need to show a circular loader in various XAML applications like Silverlight, WP7 and WPF.   In this article, we will learn how to create a Circular Loader as shown in the screenshot. I will not use a single line of C# code to create this loader. Everything will be in the XAML file itself to keep the code behind file clean. Read to know more about it step-by-step and after reading this article, you will be able to create and use a circular loader like this. Source code is also available for download at the end of the page. Feel free to use it.   Setup the Project First, we need to create a Silverlight project. Here we will create a Silverlight 4 Application project. Once you are done with the project creation, right click on the Silverlight project and add a new UserControl. We will use this as the circular loader. As shown in the...