POCO entity-based RIA service can't de-serialize associated entities
问题 I'm developing a Silverlight Business Application, using a RIA service, which is returning POCO entities (TaskTime and User). The TaskTime entity has a User entity associated with it. I have created a domain service which has a query function (GetTimesheet) which returns an IQueryable collection of TaskTime entities, which works fine if I don't try and get the associated User entities as well, but as soon as I include the [Include] and [Association] attributes above the 'User' property in the