private void AcceptExecute() { try { userService.AcceptRequest(SelectedUser, User); string friend = SelectedUser.Username; using (SocialNetworkDbEntities context = new SocialNetworkDbEntities()) { tblUser userInDb = (from x in context.tblUsers where x.UserID == User.UserID select x).First(); UserList = userInDb.tblUsers.ToList(); } Thread.Sleep(1000); string str = string.Format("You are now friend with {0} .", friend); MessageBox.Show(str); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } }