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In my window I have 2 tabs. One with the main informarion and the other one with an editable grid. When I click the save button the entire window gets validated and the controls with validation problems are highlighted in red. But if i change the tab to the one with the grid and get back to the one with the validation problems the controls are not highlighted anymore. Even if i click the save button again, and the validation happens, the controls never get highlighted again.

Here are the screen captures

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snekkke
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1 Answers1

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it's a bit late, but today I had the same situation and found the solution. You have to add a AdornerDecorator inside the TabItem: 

<TabItem Header="Foo">
        <AdornerDecorator>
           //more content
        </AdornerDecorator>
</TabItem>

I have found it in a more general question: TextBox with validation loses ErrorTemplate on tab change

Greetings

Community
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