What is the purpose of control templates in Silverlight?

Answer

Control templates allow the control of the data templates to allow easy specification in conversion of the data objects into the user interface element objects. This helps the same content to be displayed to the user. The control templates can be used to modify the visual structure of the template with an existing user interface element. The objects will be controlled by using the property of reusability. The control templates have their own visual appearance defined by native XAML resource. This file is contained in assembly of the silverlight that defines that particular control that is getting used.