WPF的ListView组重复列标题 [英] WPF ListView groups repeat column headers

问题描述

有没有办法使用分组CollectionViewSource的ListView控件的来源，当重复每组ListView.GridView内的列标题？

Is there a way to repeat the column headers inside each group of a ListView.GridView when using a grouped CollectionViewSource as the source of the ListView?

我使用的是 http://msdn.microsoft.com/的例子EN-US /库/ ms754027.aspx 它使用一个扩展控件来显示每个组。

I am using the example at http://msdn.microsoft.com/en-us/library/ms754027.aspx which uses an Expander control to display each group.

我想列标题出现在扩展的每个组内，而不是在ListView控件的顶部。

I would like the column headers to appear inside the expander for each group instead of at the top of the ListView.

推荐答案

我没有尝试过这一点，但你可以包括你的组头里面GridViewHeaderRow presenters：

I haven't tried this, but you may be able to include GridViewHeaderRowPresenters inside your group headers:

<GridViewHeaderRowPresenter
  DataContext="{Binding View, RelativeSource={RelativeSource FindAncestor,ListView,1}}"
  Columns="{Binding Columns}"
  ColumnHeaderContainerStyle="{Binding ColumnHeaderContainerStyle}"
  ColumnHeaderTemplate="{Binding ColumnHeaderTemplate}"
  ColumnHeaderTemplateSelector="{Binding ColumnHeaderTemplateSelector}"
  AllowsColumnReorder="{Binding AllowsColumnReorder}"
  ColumnHeaderContextMenu="{Binding ColumnHeaderContextMenu}"
  ColumnHeaderToolTip="{Binding ColumnHeaderToolTip}"
  SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>

如果不工作，一是安全可靠的方式来做到这一点是添加一个画着，在GridView的顶部引用一个且只有GridViewHeaderRow presenter一个的VisualBrush一个矩形。

If that doesn't work, one sure-fire way to do it is to add a Rectangle that is painted with a VisualBrush that references the one-and-only GridViewHeaderRowPresenter at the top of the GridView.

这可以用一个附加的属性来完成要在矩形使用。当连接的属性设置，它会注册一个低优先级调度回调：

This can be done with an attached property to be used on the Rectangle. When the attached property is set, it registers a low priority Dispatcher callback that:

1. 扫描了可视化树到ListView


2. 搜索，直到它找到GridViewHeaderRow presenter


3. 构建的VisualBrush，并将其设置为填充的矩形，和

该矩形本身将是这样的：

The Rectangle itself would be something like this:

<Rectangle HorizontalAlignment="Stretch"
           Height="{Binding Fill.Visual.RenderHeight}"
           my:GridViewHeaderHelper.SearchForHeaderRowPresenterAndSetFill="True" />

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