在我的程序中,我目前有一个带有修改后的行模板的数据网格,它显示一个列表视图。因此,当用户在数据网格中选择一行时,该行会展开并显示一个列表视图,而当用户选择不同的行时,原始列表会折叠,新行的列表会展开。我现在被要求让它允许扩展多个列表视图,但我不确定如何做到这一点。
我的xml代码:
<DataGrid ItemsSource="{Binding Path=Accounts}" SelectedItem="{Binding Path=SelectedAccount}" AutoGenerateColumns="False"
CanUserAddRows="False" CanUserDeleteRows="False" Width="Auto">
<DataGrid.RowDetailsTemplate>
<DataTemplate>
<ListView MaxHeight="200" ItemsSource="{Binding Path=DataContext.SelectedAccount.Details, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type Window}}}"
SelectedItem="{Binding Path=DataContext.SelectedDetail, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type Window}}}"
Tools:GridViewSort.AutoSort="True" >
<ListView.View>
<GridView>
<GridViewColumn Header="Account" DisplayMemberBinding="{Binding Path=AccountCode}"
Tools:GridViewSort.PropertyName="AccountCode" Width="Auto" />
<GridViewColumn Header="Description" DisplayMemberBinding="{Binding Path=Description}"
Tools:GridViewSort.PropertyName="Description" Width="Auto"/>
</GridView>
</ListView.View>
<ListView.Style>
<Style TargetType="ListView">
<Style.Triggers>
<DataTrigger Binding="{Binding Path=DataContext.SelectedAccount.Details.Count, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type Window}}}" Value="0">
<Setter Property="Visibility" Value="Collapsed" />
</DataTrigger>
</Style.Triggers>
</Style>
</ListView.Style>
</ListView>
</DataTemplate>
</DataGrid.RowDetailsTemplate>
<DataGrid.Columns>
<DataGridTextColumn Header="Account" Binding="{Binding Path=AccountCode}"/>
<DataGridTextColumn Header="Title" Binding="{Binding Path=AccountTitle}" />
</DataGrid.Columns>
</DataGrid>
因此,我的数据网格中显示了一个帐户列表,并且在每个帐户上都有一个详细信息列表,该列表显示在选择帐户时出现的列表视图中。How can i keep the details from the originally selected account in the listview visible when other accounts are selected?