WPF DataGridView format cell on error

Question

I have a DataGrid wich is bound to a DataTable.DefaultView. And now what i need additonaly:

I did set the ColumnError Information of the DataGridRow. So for every row in my table i have column errors and i want to display this columns with red textcolour. So the user can see this column had an error.

How can i set the cell color depending on information of the dataRow.

<Window.Resources>
        <local:CellConverter x:Key="CellConverter"></local:CellConverter>
        <Style TargetType="DataGridCell">
            <Style.Triggers>
                <DataTrigger Value="True" Binding="{Binding RelativeSource={RelativeSource Self},Converter={StaticResource CellConverter}}" >
                    <Setter Property="Background" Value="Red"> </Setter>
                </DataTrigger>
            </Style.Triggers>

        </Style>
    </Window.Resources>

With this code i can do something on each DataGridCell... But i dont know which row and which cell in that row has an error because i only have that dataGridCell Object which is a bit useless

pls help