右键浮出获取DataContext(数据上下文)

列表视图类控件，如ListView/GridView,有时项目需要按下右键浮出选项，来获取Item的DataContext。

下面的示例代码，事先我已经有了一个自定义类Video，并且已经在DataTemplate里绑定了数据源。

xaml:

<ListView.ItemTemplate> <DataTemplate x:DataType="modles:Video"> <Grid x:Name="temporaryContent_gird" RightTapped="temporaryContent_gird_RightTapped"> <TextBlock TextWrapping="WrapWholeWords" TextTrimming="CharacterEllipsis" Text="{x:Bind Video_Title}"/> <Grid.ContextFlyout> <MenuFlyout> <MenuFlyoutItem x:Name="removeTemporary_item" Text="Remove" Click="removeTemporary_item_Click"/> </MenuFlyout> </Grid.ContextFlyout> </DataTemplate> </ListView.ItemTemplate>

后台代码：

using Windows.UI.Xaml; private FrameworkElement sender_value; private void temporaryContent_gird_RightTapped(object sender, RightTappedRoutedEventArgs e) { sender_value = (FrameworkElement)sender; }

按下浮出选项：

private void removeTemporary_item_Click(object sender, RoutedEventArgs e) { var delete_temporaryVideo = sender_value.DataContext as Video; }