Multiplechoicetrainer/MultipleChoiceTrainer/Models/QuizViewModel.cs

using MultipleChoiceTrainer.Models.DataModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace MultipleChoiceTrainer.Models
{
    public enum QuizType
    {
        Section,
        Category
    }

    public class QuizViewModel
    {
        public QuizType QuizType { get; set; }

        public int CurrentTypeId { get; set; }

        public Question CurrentQuestion { get; set; }

        public IList<Choice> Choices { get; set; }


        public bool HasPreviousResult => (Evaluations != null && Evaluations.Any());
        public bool PassedPreviousQuestion => HasPreviousResult && !Evaluations.Any(e => !e.Success);
        public string PreviousQuestion { get; set; }
        public IList<Evaluation> Evaluations { get; set; }
    }
}