wpf RelativeSource binding

RelativeSource has four types

Self

FindAncestor

TemplatedParent

PreviousData

a.Self

Self is used in scenarios where the binding source and binding target are the same. One 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 relative to the height property.

b.FindAncestor

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

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 is rarely used and represents the change in value relative to previous data.

Final renderings

My series of articles
A.Sql Server2005 Transact-SQL New Weapon Learning
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I hope the knowledge mentioned above can be helpful to you, and welcome exchanges and corrections
Author: aierong
Source: http://www.cnblogs.com/aierong
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