WPF attached property Understanding

WPF attached properties

Http://www.cnblogs.com/tianyou/archive/2012/12/27/2835670.html

WPF Properties (ii) additional properties

http://blog.csdn.net/iamsupercola/article/details/7069848

An attached property is a property that does not belong to an object, but is later appended because of a requirement, that is, when the object is placed in a particular environment, the property is called an attached property, and the effect of the attached property is to decouple the attribute from the data type, making the design of the data type more flexible.

This explanation is quite clear.

WPF attached property Understanding