Creating the Silverlight Application
To create the Silverlight application for the Book control, perform the following:
- From the context menu of Sitefinity solution, click Add » New project...
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From the dialog choose Visual C# » Silverlight » Silverlight Application.
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Name the project BookSilverlight and click OK.

New dialog appears. In it you can associate your Silverlight application with the Sitefinity application. This way, the .xap file output by the Silverlight application, is copied inside the ClientBin folder of the Sitefinity application.
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In the Options section of the dialog, uncheck Add test page that references the application.

NOTE: If you leave the checkbox selected, a page is generated inside your Sitefinity project to host the Silverlight output (.xap file). This tutorial does not require such a page.
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Click OK.
Your Silverlight project is generated under the Sitefinity solution and you must have a similar solution structure.

Next, you must host the Silverlight project output in the custom control.