WPF Databinding: How do I access the "parent" data context?

user_98144 0
Viewed 199556

I have a list (see below) contained in a window. The window's DataContext has two properties, Items and AllowItemCommand.

How do I get the binding for the Hyperlink's Command property needs to resolve against the window's DataContext?

<ListView ItemsSource="{Binding Items}">
  <ListView.View>
    <GridView>
      <GridViewColumn Header="Action">
        <GridViewColumn.CellTemplate>
          <DataTemplate>
            <StackPanel>
              <TextBlock>

                <!-- this binding is not working -->
                <Hyperlink Command="{Binding AllowItemCommand}"
                           CommandParameter="{Binding .}">
                    <TextBlock Text="Allow" />
                </Hyperlink>

              </TextBlock>
            </StackPanel>
          </DataTemplate>
        </GridViewColumn.CellTemplate>
      </GridViewColumn>
    </GridView>
  </ListView.View>
</ListView>
datacontext data-binding wpf
3 Answers

You could try something like this:

...Binding="{Binding RelativeSource={RelativeSource FindAncestor, 
AncestorType={x:Type Window}}, Path=DataContext.AllowItemCommand}" ...
user_514280

This also works in Silverlight 5 (perhaps earlier as well but i haven't tested it). I used the relative source like this and it worked fine.

RelativeSource="{RelativeSource Mode=FindAncestor, AncestorType=telerik:RadGridView}"

user_9987710
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