private void OnAddExecute() { Busy = true; selectedAttendance = new Attendance() { DateID = Date.ID, Description = Description, FirstName = FirstName, LastName = LastName, SapNumber = Worker.SapNumber, WorkerID = Worker.ID, WorkerState = SelectedWorkerState.Name, WorkerStateID = SelectedWorkerState.ID, WorkerTour = SelectedWorkerTour.StartTime.ToString() + " - " + SelectedWorkerTour.EndTime.ToString(), WorkerTourID = SelectedWorkerTour.ID }; dataClient = ContainerProvider.GetInstance.Resolve <DataServiceClient>(); dataClient.AddAttendanceCompleted += AddAttendanceCompleted; dataClient.AddAttendanceAsync(selectedAttendance); }