Linq to SQL catch OnChanged "event" for entity association change

Question

Lets say I have a couple Linq to SQL classes, Person and Department. Person has a entity association to Department.

I can catch a change to Person.Name using OnNameChanging and OnNameChanged in the partial class but the designer generated code doesn't seem to call OnDepartmentChanging or OnDepartmentChanged. How can I catch these kind of changes?

Answer 1

Would it be an option to make the property private (select Code property in the dbml and set the access property in the Properties window) and create a new public property over which you have more control? This property can calls the private property and does the event raising.

I personally have have written a generator that generates the necessary files for me (like sqlmetal), giving me full control over the code. Perhaps this is an option for you as well, if you do not like the generated dbml.

This is btw almost exactly the same answer as I gave to this question: http://stackoverflow.com/questions/522172/can-you-prevent-linqdatasource-from-setting-a-property/522478#522478

I hope it helps.