将CollectionViewSource绑定到ObservableCollection

Question

无法绑定CollectionViewSource

DocProps是一个公共属性

public ObservableCollection<DocProp> DocProps1

DataContext是self

DataContext="{Binding RelativeSource={RelativeSource self}}"

这是可行的

<ListBox Grid.Row="0" Grid.Column="0" ItemsSource="{Binding Path=DocProps1}">

我不能连接一个CollectionViewSource来排序，这甚至不能得到DocProps1

    <ListBox Grid.Row="0" Grid.Column="0">
        <ListBox.ItemsSource>
            <Binding>
                <Binding.Source>
                    <CollectionViewSource Source="{Binding Path=DocProps1}">
                        <CollectionViewSource.SortDescriptions>
                            <scm:SortDescription PropertyName="Name" />
                        </CollectionViewSource.SortDescriptions>
                    </CollectionViewSource>
                </Binding.Source>
            </Binding>
        </ListBox.ItemsSource>

如何将CollectionViewSource绑定到公共属性？

谢谢

Answer 1

它是这样工作的：

<ListBox ItemsSource="{Binding}">
  <ListBox.DataContext>
    <CollectionViewSource Source="{Binding Path=DocProps1}">
    </CollectionViewSource>
  </ListBox.DataContext>    
</ListBox>

本文XAML Binding to a CollectionViewSource property on a ViewModel对此行为有一些解释