在我的程序中,我目前有一个带有修改过的行模板的数据网格,它显示了一个列表视图。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,当用户选择另一行时,原始列表会折叠,新行的列表会展开。我现在被要求允许扩展多个列表视图,并且不确定如何执行此操作。
我的xaml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>
所以我有一个在我的数据网格中显示的帐户列表,每个帐户上都有一个详细列表,列表视图显示在选择帐户时显示。如果选择其他帐户,如何保持列表视图中最初选定帐户的详细信息?
答案 0 :(得分:0)
如果您希望以前选定的行的detailsTemplate保持可见,您可以尝试这样做。您订阅了DataGrid的 RowDetailsVisibilityChanged 事件,如
<DataGrid RowDetailsVisibilityChanged="DataGrid_RowDetailsVisibilityChanged_1">
.......
........
</DataGrid>
private void DataGrid_RowDetailsVisibilityChanged_1(object sender, DataGridRowDetailsEventArgs e)
{
e.Row.DetailsVisibility= Visibility.Visible;
}
我希望这会有所帮助。