private void OnCreateExecute()
 {
     Busy = true;
     Date = new Date()
     {
         DateContent  = SelectedDate,
         Description  = Description,
         DetachmentID = LoginInit.user.DetachmentID,
         IsNight      = IsNight
     };
     dataClient = ContainerProvider.GetInstance.Resolve <DataServiceClient>();
     dataClient.AddDateCompleted += AddDateCompleted;
     dataClient.AddDateAsync(Date);
 }