/// <summary> /// Get the next available training sessions ordered by date. /// </summary> /// <returns>A collection of <see cref="TrainingSession"/>.</returns> private IEnumerable <PictureTrainingSessionViewModel> GetAvailableTrainingSessions() { return(TrainingSessionService .GetAllAvailable(int.Parse(Application.Current.Properties["UserId"].ToString())) .OrderBy(s => s.Date)); }