WPF DataGrid - How do I use cell and row validation with DataGridTemplateColumn

Question

How do I use cell and row validation with DataGridTemplateColumn?

                <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding DataType}"/>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                    <DataGridTemplateColumn.CellEditingTemplate>
                        <DataTemplate>
                            <ComboBox SelectedItem="{Binding DataType}" ItemsSource="{Binding Source={x:Static app:ApplicationConfiguration.DataTypes}, ValidatesOnDataErrors=True}"/>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellEditingTemplate>