I have a List of Class OrderSetItem which I apply to Grid.DataSource

public class OrderSetItem { public OrderSetItem(){} public string Description { get; set; }

private List<COrder> children = new List<COrder>(); public List<COrder> Children {

get{return children;} set{ this.children = value;}

} }

 COrder is defined as

public class COrder

{

  public COrder(){}

  public string Description { get; set; }

  private CItem orderitem = null;

  public CItem OrderItem {

    get{return orderitem;}

    set{ this.orderitem = value;}

  }

}

 and each CItem has Location which is a Class

public class Location{

  public Location(){}

  public string Description { get; set; }

  private int capacity = 0;

  public string SiteText {

     get{return siteText;}

    set{ this.siteText = value;}

  public int Capacity {

     get{return capacity;}

     set{ this.capacity = value;}

}

And I want to display all 3 Levels, but I can't see the orderitem or Location.

xaml is

<igDP:XamDataGrid.FieldLayouts >
  <igDP:FieldLayout Key="OrderSetItem">
    <igDP:FieldLayout.Settings>
 <igDP:FieldLayoutSettings AutoFitMode="Always" AutoGenerateFields="False" />
    </igDP:FieldLayout.Settings> 
    <igDP:FieldLayout.Fields>
      <igDP:Field Name="Description" />
    </igDP:FieldLayout.Fields>
  </igDP:FieldLayout>
  <igDP:FieldLayout Key="Children">
    <igDP:FieldLayout.Settings>
<igDP:FieldLayoutSettings AutoFitMode="Always" AutoGenerateFields="False" />
    </igDP:FieldLayout.Settings> 
    <igDP:FieldLayout.Fields>
      <igDP:Field Name="Description" />
    </igDP:FieldLayout.Fields>
  </igDP:FieldLayout>
  <igDP:FieldLayout Key="OrderItem" />
    <igDP:FieldLayout.Settings>
<igDP:FieldLayoutSettings AutoFitMode="Always" AutoGenerateFields="False" />
    </igDP:FieldLayout.Settings> 
    <igDP:FieldLayout.Fields>
      <igDP:Field Name="Description" />
    </igDP:FieldLayout.Fields>
</igDP:FieldLayout>
 <igDP:FieldLayout Key="Location" />
<igDP:FieldLayout.Settings>
<igDP:FieldLayoutSettings AutoFitMode="Always" AutoGenerateFields="False" />
</igDP:FieldLayout.Settings>
<igDP:FieldLayout.Fields>
<igDP:Field Name="Capacity" />
<igDP:Field Name="SiteText" />
</igDP:FieldLayout.Fields>
</igDP:FieldLayout>
</igDP:XamDataGrid.FieldLayouts>

What do I have to do to get all levels?

Can any body provide a full working sample for this?