wpf RelativeSource binding

There are four types of RelativeSource

Self

FindAncestor

TemplatedParent

PreviousData

a.Self

Self is used in scenarios where the binding source and binding target are the same. A property of an object is bound to another property of the same object.

For example, let’s take an ellipse with the same height and width. Add the code given below in the XAML file. The width property is bound relatively to the height property.

b. Find Ancestor

FindAncestor
As the name implies, this option is used when the binding source is one of the ancestors (parents) of the binding target. With the FindAncestor extension, any level of ancestors can be found.

Now, let’s use the FindAncestor extension to bind the ancestor’s Name property to the Content property of the child element button.

c. TemplatedParent

TemplatedParent is a property that enables you to create a control template that contains a small number of unknown values. These values ​​depend on the properties of the control to which the ControlTemplate is applied.

d. PreviousData

PreviousData This is rarely used to indicate the change of the value relative to the previous data.

The final rendering

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I hope the knowledge mentioned above can give you some hints, and welcome to exchange and correct.
Author: aierong
Source: http://www.cnblogs.com/aierong
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