Question

How do I make my RowStyle to get applied after AlternatingRowBackground? I want items, having IsOrange as true to have Orange background regardless of alternating row background, which isn’t the case currently.

XAML:

<DataGrid Name="g"
    AlternatingRowBackground="Blue" 
    AlternationCount="2" 
    ...
    SelectionMode="Single">
    <DataGrid.RowStyle>
        <Style TargetType="DataGridRow">
            <Style.Triggers>
                <DataTrigger Binding="{Binding IsOrange}" Value="Y">
                    <Setter Property="Background" Value="Orange" />
                </DataTrigger>
            </Style.Triggers>
        </Style>
    </DataGrid.RowStyle>
    ...
</DataGrid>

Answer 1

It’s not a bug. In a Style you can’t override a local value set for the alternating row. That’s why this will not work

<DataGrid AlternatingRowBackground="Blue"

But if you set AlternatingRowBackground in a Style you can

<DataGrid.Style>
    <Style TargetType="DataGrid">
        <Setter Property="AlternatingRowBackground" Value="Blue"/>
    </Style>
</DataGrid.Style>

Thanks to this answer.