A relationship is in the Deleted state

Question

When I am trying to clear a collection (calling .Clear) I get the following exception:

An error occurred while saving entities that do no

Answer 1

There is one trick. You can delete entities without using special DbSet:

(this.dataContext as IObjectContextAdapter).ObjectContext.DeleteObject(entity);

Execute this for each item in Availability collection before clearing it. You don't need 'identifying relationships' for this way.