WPF Triggering by ancestral property

Question

I would like to use trigger the trigger, but i need to select the ancestor's property, for example:

<Trigger Property="State" Value="Expanded">
   <Setter Property="Background" Value="Red" />
</Trigger>

Only that the State property need to be the property of an unknown ancestor by a known Type and if could not be found then trigger would never execute.

So my question is how can I find the ancestor to get the property to use in the trigger?

Hope I made myself clear. Thank you in advance.

score 8 · Accepted Answer · answered Apr 10 '13 at 16:53

8

<DataTrigger Binding="{Binding State, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Whatever}}}" Value="Expanded">

answered Apr 10 '13 at 16:53

Kent Boogaart

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Worked perfectly. No need for FindAncestor since it is default. Thank you. – Cybered Apr 14 '13 at 11:25

WPF Triggering by ancestral property

1 Answers1