I have a hierarchial data structure.

like

ParentNode

{

ParentObject

ChildNodeCollection 

} 

ChildNode

{

ChildObject

GrandChildNodeCollection 

} 

I bind to a collection of ParentNodes

I would like to set the fields in the data grid to sub-properties of ParentObject

like   <igDP:Field Name="ProjectObject.Name" />

do you have an suggestions for binding to the sub-properties of an object?