The entity is null after calling GetAllEntities but this code works:

public Stores()
        {
            InitializeComponent();

            this.Title = ApplicationStrings.StorePageTitle;
            this.StoreController.GetAllEntities(delegate(object s, EventArgs e)
            {
               this.StoreController.Entity = this.StoreController.EntityList.FirstOrDefault();
                this.DataContext = this.StoreController.Entity;
            });
        }

Now that I have that working I tought I'd try saving the entity. It does not update the table. I trace all the code and it sees the modified entity but the viewing the WCF calls with Fiddler shows no update is being called. No errors either. I can't step into this:
function:public virtual void SaveEntityAsync(EntityType entity, EventHandler callBack, object userState)
...
--> SubmitOperation submitOp = this.TempDomainContext.SubmitChanges(OnSaveEntityCompleted, userState);
so I don't know how to troubleshoot. Any advise on how to find the problem will be appeciated.
Thanks