I'm testing the xamDataGrid in a precursor to puchasing the product and what I am trying to do is to bind data to the grid based on object collections implemented by generic lists. Having said this, I only see the parent list in the grid whilst I'm expecting to see the child data appear, do I have to specify a relationship in which to display the child table?. My code is as below.

    class Order
    {
        private int orderId;

        public int OrderId
        {
            get { return orderId; }
            set { orderId = value; }
        }
        private string orderAmount;

        public string OrderAmount
        {
            get { return orderAmount; }
            set { orderAmount = value; }
        }
        private DateTime orderDate;

        public DateTime OrderDate
        {
            get { return orderDate; }
            set { orderDate = value; }
        }

        private List<OrderDetail> orderDetails = new List<OrderDetail>();

        internal List<OrderDetail> OrderDetails
        {
            get { return orderDetails; }
            set { orderDetails = value; }
        }

        public Order(int orderId, string orderAmount, DateTime orderDate)
        {
            this.OrderId = orderId;
            this.OrderAmount = orderAmount;
            this.OrderDate = orderDate;
        }
    }

    class OrderDetail
    {
        private string productName;

        public string ProductName
        {
            get { return productName; }
            set { productName = value; }
        }

        private int quantity;

        public int Quantity
        {
            get { return quantity; }
            set { quantity = value; }
        }
        private string unitCost;

        public string UnitCost
        {
            get { return unitCost; }
            set { unitCost = value; }
        }

        public OrderDetail(string productName, int quantity, string unitCost)
        {
            this.productName = productName;
            this.quantity = quantity;
            this.unitCost = unitCost;
        }
    }

Window.xaml.cs
============

            Order order1 = new Order(1234, "12.23", DateTime.Now);
            order1.OrderDetails.Add(new OrderDetail("a", 11, "1.23"));
            order1.OrderDetails.Add(new OrderDetail("b", 4, "0.03"));
            orders.Add(order1);

            Order order2 = new Order(5986, "72.13", DateTime.Now);
            order2.OrderDetails.Add(new OrderDetail("Z", 38, "71.23"));
            order2.OrderDetails.Add(new OrderDetail("r", 41, "1.48"));
            orders.Add(order2);

            Order order3 = new Order(8431, "2.3", DateTime.Now);
            order3.OrderDetails.Add(new OrderDetail("aD", 110, "5.11"));
            order3.OrderDetails.Add(new OrderDetail("bq", 49, "0.83"));
            orders.Add(order3);

            Order order4 = new Order(6584, "38.11", DateTime.Now);
            order4.OrderDetails.Add(new OrderDetail("a", 121, "1.23"));
            order4.OrderDetails.Add(new OrderDetail("r", 8, "0.03"));
            orders.Add(order4);

            Order order5 = new Order(7713, "62.34", DateTime.Now);
            order5.OrderDetails.Add(new OrderDetail("Z", 89, "1.23"));
            order5.OrderDetails.Add(new OrderDetail("b", 2, "0.03"));
            orders.Add(order5);

            Order order6 = new Order(9566, "1.58", DateTime.Now);
            order6.OrderDetails.Add(new OrderDetail("a", 1, "1.23"));
            order6.OrderDetails.Add(new OrderDetail("Z", 84, "0.03"));
            orders.Add(order6);

            xamDataGrid1.DataSource = orders;

Window.xaml
=========== 

<Window x:Class="GridTest.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300" xmlns:igDP="http://infragistics.com/DataPresenter">
    <Grid>
        <igDP:XamDataGrid DockPanel.Dock="Top"            
            Name="xamDataGrid1"            
            AutoFit="True" />
    </Grid>
</Window>