<Style x:Key="WareTypeRow"
               BasedOn="{StaticResource MetroDataGridRow}"
               TargetType="DataGridRow">
            <Style.Triggers>
                <DataTrigger Binding="{Binding Expelled}" Value="True">
                    <Setter Property="Foreground" Value="Red" />
                </DataTrigger>
            </Style.Triggers>
            <Setter Property="Control.Foreground" Value="{DynamicResource BlackBrush}" />
            <Setter Property="FrameworkElement.Margin" Value="0" />
        </Style>
...
       <DataGrid RowStyle="{StaticResource WareTypeRow}" ...>
          ...
       </DataGrid/>