set an entity collection to empty in c#

Question

How do you set an entity collection to null? I have tried something like this

user.movies = new List<movie>();

but I am getting this error:

Cannot implicitly convert type 'System.Collections.Generic.List<MvcApplication2.dal.movie>' to 'System.Data.Objects.DataClasses.EntityCollection<MvcApplication2.dal.movie>'

Answer 1

user.movies.Clear(); or user.movies = null;