WPF DataGrid动态生成列的单元格背景色绑定

<DataTrigger Binding="{Binding RelativeSource={RelativeSource Self}, Path=Column.DisplayIndex}" Value="1">
  <Setter Property="Background" Value="{Binding RelativeSource={RelativeSource Self}, Path=Content.Text, 
    Converter={StaticResource cellBackgroundConvert}}"/>
</DataTrigger>

上面的是datagrid第一列的单元格背景色根据值改变。