提供了部分Silverlight控件的实现源码，有利于深入了解控件的工作本质-Silverlight offers some of the implementation of source control is beneficial to understanding the nature of work control

Silverlight环境下DraggableWindow的源码及简单的例子，用于学习控件模版等知识-The following simple example source code and Silverlight environment DraggableWindow of control templates for learning, knowledge