我有一些有详细信息表的数据。我希望数据在ListView中呈现。当您在原始列表中选择项目时,我希望详细数据显示为嵌套的ListView。我似乎无法弄清楚如何使数据绑定工作。
这是我到目前为止所遇到的问题(问题是{Binding Path=FK_History_HistoryItems}
):
<ListView Name="lstHistory" ItemsSource="{Binding Source={StaticResource History}}" SelectionChanged="lstHistory_SelectionChanged">
<ListView.View>
<GridView>
<GridViewColumn DisplayMemberBinding="{Binding Path=Name}" Header="Name" Width="100" />
<GridViewColumn DisplayMemberBinding="{Binding Path=Description}" Header="Description" Width="150" />
<GridViewColumn DisplayMemberBinding="{Binding Path=Total, Converter={StaticResource moneyConvert}}" Header="Total" Width="100" />
<GridViewColumn DisplayMemberBinding="{Binding Converter={StaticResource categoryAggregate}}" Header="Categories" Width="100" />
</GridView>
</ListView.View>
<ListView.Resources>
<Style TargetType="{x:Type ListViewItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<Border>
<StackPanel>
<Border Name="presenter"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Padding="{TemplateBinding Padding}">
<GridViewRowPresenter />
</Border>
<Border Name="details" Visibility="Collapsed" Margin="5"
BorderBrush="Black" BorderThickness="2">
<StackPanel Margin="5">
<ListView ItemsSource="{Binding Path=FK_History_HistoryItems}">
<ListView.View>
<GridView>
<GridViewColumn DisplayMemberBinding="{Binding Path=Ammount}" Header="Ammount" Width="100" />
<GridViewColumn DisplayMemberBinding="{Binding Path=Category}" Header="Category" Width="100" />
</GridView>
</ListView.View>
</ListView>
</StackPanel>
</Border>
</StackPanel>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter TargetName="details" Property="Visibility" Value="Visible" />
<Setter TargetName="presenter" Property="Background" Value="Navy"/>
<Setter TargetName="presenter" Property="TextElement.Foreground" Value="White" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.Resources>
</ListView>
答案 0 :(得分:1)
如果我正确理解你的问题,你需要绑定到原始列表的SelectedItem:
<ListView ItemsSource="{Binding ElementName=lstHistory, Path=SelectedItem}">
然后根据需要设置datatemplate / view。如果您不想使用ElementName进行绑定,您也可以使用RelativeSource,但我发现ElementName更易于阅读和理解。
答案 1 :(得分:0)
您需要将问题行更改为以下内容:
<ListView ItemsSource="{Binding FK_History_HistoryItems}">
通过这种改变,控件可以很好地工作。我一直在做类似无济于事的事情。我非常喜欢你的工作。
答案 2 :(得分:0)
为了使Trigger工作,您需要设置ControlTemplate TargetType:
javap -c -v
如果没有指定TargetType(作为可选类型),XAML渲染将会混淆......