如何突出显示搜索结果中的第一行？

Question

我只需要在搜索时选择第一行，我发现一些IGDP论坛也想这样做，但是它们的解决方案对我不起作用，例如FilterEvaluationTrigger="OnEnterKeyOrLeaveCell"

<igDP:XamDataGrid Margin="2" Theme="LunaSilver" DataSource="{Binding Documents}" Grid.Row="2" GroupByAreaLocation="None" ActiveDataItem="{Binding SelectedObject}" ScrollingMode="Immediate">
    <igDP:XamDataGrid.InputBindings>
        <MouseBinding MouseAction="LeftDoubleClick" Command="{StaticResource EditCommand}"/>
    </igDP:XamDataGrid.InputBindings>
    <igDP:XamDataGrid.FieldLayoutSettings>
        <igDP:FieldLayoutSettings SelectionTypeRecord="Single" AutoGenerateFields="False" ExpansionIndicatorDisplayMode="CheckOnDisplay" FixedFieldUIType="None" AllowFieldMoving="No"/>
    </igDP:XamDataGrid.FieldLayoutSettings>
    <igDP:XamDataGrid.FieldSettings>
        <igDP:FieldSettings AllowSummaries="False" SummaryUIType="SingleSelect" LabelTextAlignment="Center" AllowEdit="False" CellValuePresenterStyle="{StaticResource CellValuePresenter}" FilterEvaluationTrigger="OnEnterKeyOrLeaveCell" />
    </igDP:XamDataGrid.FieldSettings>