C# inline conditional nullabel value types

Question

Possible Duplicate:
Conditional operator assignment with Nullable<value> types?

in the following code snippet company.ParentID is a int? and parrent a reference type. this code is a syntax error. is there anyway to fix this inline conditional??

company.ParentID = (parent == null ? null: (parent.ID));

Answer 1

Cast parent.Id to an int?

company.ParentID = (parent == null) ? null : (int?)parent.ID;