WPF 数据绑定(bind) : How do I access the "parent" data context?

Question

我的窗口中包含一个列表(见下文)。窗口的 DataContext 有两个属性:Items 和 AllowItemCommand。

如何获取需要根据窗口的 DataContext 解析的 Hyperlink 的 Command 属性的绑定(bind)？

<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>

Answer 1

你可以尝试这样的事情:

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