Get started with WPF

First course in MSDN:
http://msdn.microsoft.com/en-us/library/ms752299.aspx

Some important concepts:

a. Trees in WPF

http://msdn.microsoft.com/en-us/library/ms753391.aspx

b. Routed Events [Note1]
http://msdn.microsoft.com/en-us/library/ms742806.aspx

c. Dependency Properties
http://msdn.microsoft.com/en-us/library/ms752914.aspx

d. Threading Model in WPF
http://msdn.microsoft.com/en-us/library/ms741870.aspx

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[Note1]

Routed Events 意指一个事件在一个相互关联的元素组成的树中传递，而非直接传递到一个特定的目标。它可以在两个方向进行传递，Bubbling, tunneling.

事件Routed的三种方式

1〉 Bubbling：事件由源头传递到元素树的最顶点

2〉 Tunneling：事件由树的顶端传递到源头

3〉 Direct：事件不在树中移动，表现方式类同标准的CLR事件