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[WPF] How WPF modifies the property values of a control template at runtime

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Posted on 12/19/2017 5:34:01 PM | | | |
I have this:

Then how do I modify the "tbFoo" value at runtime?

Using Triggers:



The renderings are as follows:



TargetName is only valid for triggers in Template, and triggers in styles do not have TargetName.

Because you have a series of Setters in your style, and there are no independent controls, there are no controls in the name range, so there is no such thing as TargetName. In the template, we usually need to provide some controls that will name them, so the TargetName works.





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