Multiplechoicetrainer/MultipleChoiceTrainer/Models/AbstractEditViewModel.cs

using Microsoft.AspNetCore.Mvc.Rendering;

namespace MultipleChoiceTrainer.Models
{
    public class AbstractEditViewModel<T>
        where T: new()
    { 
        public T Entity { get; set; }
        public int? PreviousCategoryId { get; set; }

        public SelectList Assignables { get; set; }
    }
}