我有这个:
<ListView ItemsSource="{Binding MyFirstCollection} >
<ListView.View>
<GridView>
<GridViewColumn>
<GridViewColumn.CellTemplate>
<DataTemplate>
<ListView ItemsSource="{Binding DataContext.MyOtherCollection, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}}" >
<GridView>
<GridViewColumn>
<GridViewColumn.CellTemplate>
<DataTemplate>
<CheckBox Content="{Binding}">
<!-- the error is in here somewhere -->
<CheckBox.IsChecked>
<MultiBinding Converter="{StaticResource OrderExclusionConverter}">
<Binding Path="{Binding DataContext, RelativeSource={RelativeSource FindAncestor, AncestorLevel=2, AncestorType={x:Type ListView}}}" />
<Binding Path="MemberCount.MemberCountID" />
</MultiBinding>
</CheckBox.IsChecked>
</CheckBox>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView> </ListView>
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
如果我在“错误在这里的某处”,我如何获得绑定(bind)以访问 MyFirstCollection 中的当前项目?
我试过这个:
Path="{Binding DataContext, RelativeSource={RelativeSource FindAncestor, AncestorLevel=2, AncestorType={x:Type ListView}}}"
我认为这可行,但它给了我binding can only be set on a dependencyproperty of a dependencyobject
错误。
编辑:发布完整绑定(bind)
最佳答案
这个:
<Binding Path="{Binding DataContext, RelativeSource={RelativeSource FindAncestor, AncestorLevel=2, AncestorType={x:Type ListView}}}" />
错了。您不能在另一个 Binding
的 Path
属性上设置 {Binding}
。你需要的是:
<Binding Path="DataContext"
RelativeSource="{RelativeSource AncestorType=ListView, AncestorLevel=2}"/>
问题是您似乎混淆了属性语法 和属性元素语法。您可能想在 MSDN 上阅读有关这些概念的更多信息.
关于c# - WPF 嵌套绑定(bind)令人头疼 : access outer ListView with nested ListView,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24999653/