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);
}