WPF RelativeSource binding question

Question

HI! I have an Expander and a TextBox. I want to disable the TextBox when the Expander is expanded and enable when it's not expanded. How to do that? I've tried something like this:

<TextBox IsEnabled="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Expander}, AncestorLevel=1},Path=IsExpanded}" />

But it's vice versa.

Thomas Levesque · Accepted Answer · 2009-08-18 09:51:16Z

1

Try to remove the AncestorLevel property, it's error prone and usually not necessary

answered Aug 18, 2009 at 9:51

Thomas Levesque

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