WPF數(shù)據(jù)綁定：如何訪問“父”數(shù)據(jù)上下文？我有一個窗口中包含的列表（見下文）。窗口DataContext有兩個屬性，Items和AllowItemCommand。如何獲取針對窗口的屬性需要解析Hyperlink的Command屬性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>