WPFToolkit DataGrid:突出显示修改的行 [英] WPFToolkit DataGrid: Highlight modified rows

问题描述

有没有办法在 DataGrid 上突出显示所有修改过的行?由于网格绑定到 System.Data.DataTable 我想我可以将每一行的颜色绑定到它的 RowState(下面的示例)，但这并没有似乎不起作用.

Is there a way to highlight all the modified rows on a DataGrid? Since the grid is bound to a System.Data.DataTable I figured I might be able to bind the color of each row to it's RowState (example below), but that doesn't seem to work.

有什么想法吗?

xmlns:data="clr-namespace:System.Data;assembly=System.Data"
<Style x:Key="DataGridRowStyle" TargetType="{x:Type toolkit:DataGridRow}">
    <Style.Triggers>
        <Trigger Property="IsSelected" Value="true">
            <Setter Property="Background" Value="Blue" />
        </Trigger>
        <DataTrigger Binding="{Binding RowState}"
                     Value="{x:Static data:DataRowState.Modified}">
            <Setter Property="Background" Value="LightYellow" />
        </DataTrigger>
    </Style.Triggers>
</Style>

推荐答案

<DataGrid.RowStyle> 
  <Style TargetType="DataGridRow"> 
    <Style.Triggers> 
        <DataTrigger Binding="{Binding RowState}" Value="{x:Static data:DataRowState.Modified}"> 
            <Setter Property="Background" Value="LightYellow" />            
        </DataTrigger> 
    </Style.Triggers> 
  </Style> 
</DataGrid.RowStyle> 

更新
在您还发布了您的 xaml 之后，很明显在 xaml 中找不到问题.我刚刚查看了 DataTable 类的 msdn，但我看不到让 WPF 检测 RowState 属性更改的机制.因此，直接绑定到此属性不会为您提供可靠的结果.
看来您必须包装您的数据项.我建议为项目创建一个 ViewModel 并添加一个属性，该属性表示该行是否已通过更改通知(INotifyPropertyChanged 或 DP)更改并绑定到此属性.当然还有其他选择，但 IMO 为每个项目创建一个 VM 在大多数情况下是最好的解决方案.

Update
After you have posted also your xaml, it's obvious that the problem is not to be found in the xaml. I have shortly looked at msdn for the DataTable-class and I can not see a mechanism that let WPF detect changes of the RowState-property. Therefore, direct binding to this property will not give you reliable results.
It seems that you have to wrap your data items. I recommend to make a ViewModel for the items and add a property that says if the row has changed with change notification (INotifyPropertyChanged or DP) and bind to this property. Surely there will be also other alternatives, but IMO creating a VM per item is in most cases the best solution.

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