private static void CreatePositionedNodePropertyGrid(Window callingWindow)
{
PropertyGrid<PositionedNode> asPropertyGrid = callingWindow as PropertyGrid<PositionedNode>;
asPropertyGrid.ExcludeMember("CostToGetHere");
asPropertyGrid.ExcludeMember("Links");
asPropertyGrid.ExcludeMember("X");
asPropertyGrid.ExcludeMember("Y");
asPropertyGrid.ExcludeMember("Z");
asPropertyGrid.Name = "Positioned Node";
}