Reinstantiating EF classes with one-to-many relationship and compound key of strings

Question

I have the following EF Code First classes, which appear to be working to a point. I also have Initialization code that seeds these tables with data from elsewhere that is leng

Answer 1

Why SubCategories is null or with 0 item because you don't include this relation that it is Eager loading. if you want to use lazy loading you can use virtual keyword in your navigation property:

Lazy Loading:

public virtual List<SubCategory> SubCategories { get; set; }

Eager Loading:

db.Categories.Where(c => c.CategoryCode == "FUND").Include(x => x.SubCategories ).ToList();

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