Undelete an entity marked as EntityState.Delete?

entity-framework, entity-relationship, many-to-many, navigation-properties

Solution

Since I believe this is a bug, I reported it to Microsoft please vote and share your ideas: http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=513174

Problem

instead of talking let me talk with code: ``` Dim Contact = Context.Contacts.Include("Phones") Dim phone = Contact.Phones(0) Contact.Remove(phone) ``` How do I refresh the context now, canceling last relation deletion? I tried: ``` Context.Refresh(RefreshMode.StoreWins, phone) 'Doesn't recover the relation Context.Refresh(RefreshMode.StoreWins, _ ObjectStateManager.GetObjectStateEntries(EntityState.Deleted)) ``` the last one throws an InvalidOperationException: The element at index 0 in the collection of objects to refresh has a null EntityKey property value or is not attached to this ObjectStateManager. Important Table structure: Contact: FirstName, LastName Phone: Number, Note ContactPhone (many-to-many): ContactId (nav), PhoneId (nav)

Original source