ViewData["TypeId"] = new SelectList(_context.ClassifierElements, "Id", "Name");

public class Cell
{
    public int Id { get; set; }

    public string Name { get; set; }

    public int TypeId { get; set; }
    public ClassifierElement Type { get; set; }

    public ICollection<Component> Components { get; set; }

    public ICollection<Parameter> Parameters { get; set; }
}


public class Classifier
{
    public int Id { get; set; }

    public string Name { get; set; }

    public ICollection<ClassifierElement> ClassifierElements { get; set; }
}

public class ClassifierElement
{
    public int Id { get; set; }

    public int ClassifierId { get; set; }
    public Classifier Classifier { get; set; }

    public string Name { get; set; }
}