C# 带有上下文菜单的LongListSelector

实际上，我正在尝试在我的WindowsPhone8应用程序的LongListSelector中实现一个ContextMenu。 这就是我正在做的。我不明白为什么上下文菜单没有显示出来。我如何使它工作/

<phone:LongListSelector Name="Storico" HorizontalAlignment="Left" Height="384" Margin="39,254,0,0" VerticalAlignment="Top" Width="406" BorderBrush="#FFFF2800" Tap="Storico_Tap">
                <phone:LongListSelector.ItemTemplate>
                    <DataTemplate>
                        <TextBlock Text="{Binding Name}" Width="420" Height="40" Foreground="#FFFF9000" FontSize="30" ManipulationStarted="TextBlock_ManipulationStarted" ManipulationCompleted="TextBlock_ManipulationCompleted"/>
                        <toolkit:ContextMenuService.ContextMenu>
                            <toolkit:ContextMenu Name="ContextMenu" >
                                <toolkit:MenuItem Name="Watch" Header="Watch Trailer"/>
                                <toolkit:MenuItem Name="Buy" Header="Buy"/>
                                <toolkit:MenuItem Name="Share" Header="Share"/>
                            </toolkit:ContextMenu>
                        </toolkit:ContextMenuService.ContextMenu>
                    </DataTemplate>
                </phone:LongListSelector.ItemTemplate>
            </phone:LongListSelector>

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提前感谢

是否尝试将ContextMenu添加到TextBlock

<TextBlock Text="{Binding Name}" Width="420" Height="40" Foreground="#FFFF9000" FontSize="30" ManipulationStarted="TextBlock_ManipulationStarted" ManipulationCompleted="TextBlock_ManipulationCompleted">
    <toolkit:ContextMenuService.ContextMenu>
        <toolkit:ContextMenu Name="ContextMenu" >
            <toolkit:MenuItem Name="Watch" Header="Watch Trailer"/>
            <toolkit:MenuItem Name="Buy" Header="Buy"/>
            <toolkit:MenuItem Name="Share" Header="Share"/>
        </toolkit:ContextMenu>
    </toolkit:ContextMenuService.ContextMenu>
</TextBlock>

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谢谢你，伙计！虽然你的解决方案看起来很“简单”，但这才是真正有效的。我已经试过了，我不知道为什么它以前不起作用。再次感谢！：）