Self-referencing RadGridView with non-trivial ViewModel

[Mike]

My ItemsSource is a list of records with a Properties bag, rather than having convenient top-level properties

Attempts to define the relationship like this do not work (see error below). Is there some other mechanism?

      var p = new FieldDescriptorNamePair
      {
        ParentFieldDescriptorName = "Properties[\"OrderId\"].Value",
        ChildFieldDescriptorName  = "Properties[\"ParentOrderId\"].Value"
      };

 

----------------------------------------------------------------------------------

  Object reference not set to an instance of an object.
--- Stack Trace
   at Telerik.Windows.Data.HierarchyFilter`1.<>c__DisplayClass6.<CreateFilterLambda>b__4(TElement r1)
   at Telerik.Windows.Data.HierarchyFilter`1.CompareValues(TElement record)
   at Telerik.Windows.Data.HierarchyFilter`1.<FilteredData>b__8(TElement d)
   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()

[Stefan]

Hello Mike,

The supported approach for defining such relation is discussed in the Self-Referencing GridView topic. Can you please take a look at it? Basically, you need to set the ParentFieldDescriptorName and ChildFieldDescriptorName to be directly the name of a given property.

Regards,
Stefan X1
Telerik