I'm having a problem using a converter on Fields in the XamDataGrid that works when I use an UnboundField. I have an integer value that I want to display leading zeros if the value is less than 10. i.e. value 1 should show up as 01

I'm including the source for a small example that shows the UnboundField working and the Field not working.

Here's my xaml:

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WpfApplication1"
        xmlns:igDP="http://infragistics.com/DataPresenter"
        DataContext="{Binding RelativeSource={RelativeSource Self}}" >
    <Grid>
        <Grid.Resources>
            <local:StringFormatConverter x:Key="StringFormatConverter"/>
        </Grid.Resources>
        <igDP:XamDataGrid DataSource="{Binding Path=MyRecords}" >
            <igDP:XamDataGrid.FieldLayouts>
                <igDP:FieldLayout>
                    <igDP:FieldLayout.Fields>                        
                        <igDP:Field Name="ID" Converter="{StaticResource StringFormatConverter}" ConverterParameter="{}{0:00}" />
                        <igDP:UnboundField Label="ID-Unbound" BindingPath="ID" Converter="{StaticResource StringFormatConverter}" ConverterParameter="{}{0:00}" />
                        <igDP:Field Name="Name" />
                    </igDP:FieldLayout.Fields>
                </igDP:FieldLayout>
            </igDP:XamDataGrid.FieldLayouts>
        </igDP:XamDataGrid>
    </Grid>
</Window>

And here's my code behind.

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Windows;
using System.Windows.Data;
 
namespace WpfApplication1
{
    public partial class MainWindow : Window
    {
        public class MyRecord
        {
            public int ID { get; set; }
            public string Name { get; set; }
 
            public MyRecord(int id, string name)
            {
                ID = id;
                Name = name;
            }
        }
 
        public List<MyRecord> MyRecords { get; set; }
        public MainWindow()
        {
            MyRecords = new List<MyRecord>();
            MyRecords.Add(new MyRecord(0, "Bob"));
            MyRecords.Add(new MyRecord(0, "Frank"));
            MyRecords.Add(new MyRecord(1, "John"));
            MyRecords.Add(new MyRecord(10, "Mary"));
 
            InitializeComponent();
        }
 
    }
 
    public class StringFormatConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return string.Format(parameter.ToString(), value);
        }
 
        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return value;
        }
    }
}

Any ideas?