wpf - ItemsControl 缺少垂直滚动条

Question

我有以下 ItemsControl它完美地包裹了元素，但它没有垂直滚动条来查看包裹的元素。如何让滚动条显示？

    <ItemsControl x:Name="tStack" Grid.Column="0" Grid.Row="1"
                  ItemsSource="{Binding Shows.View}"
                  HorizontalAlignment="Stretch" VerticalAlignment="Stretch"
                  BorderThickness="0.5">
        <ItemsControl.ItemsPanel>
            <ItemsPanelTemplate>
                <WrapPanel Orientation="Horizontal" HorizontalAlignment="Left"
                           VerticalAlignment="Top"/>
            </ItemsPanelTemplate>
        </ItemsControl.ItemsPanel>
        <ItemsControl.ItemTemplate>
            <DataTemplate>
                <Viewbox HorizontalAlignment="Left"  Height="250">
                    <Controls1:MyShowsUserControl Padding="10"/>
                </Viewbox>
            </DataTemplate>
        </ItemsControl.ItemTemplate>
    </ItemsControl>

Answer 1

ItemsControl默认不包装 ItemsPresenter在 ScrollViewer所以你必须像这样手动完成:

<ScrollViewer Grid.Column="0" Grid.Row="1">
   <ItemsControl x:Name="tStack" ... >
      <!-- .... -->
   </ItemsControl>
</ScrollViewer>