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C# Entity Framework Basics Extending Our Entity Data Model Adding a One-to-Many Entity Relationship

Why do you use a constructor in the principle with one-to-many relationships?

As title says, I have used one-to-many relationships in the past and this consists of simply using navigation properties on one or both classes and it seems to work just fine, but in the video the lecturer goes further and uses a constructor to create a list - why?

1 Answer

Steven Parker
Steven Parker
217,469 Points

Just declaring the collection doesn't populate it, but adding this to the constructor insures that it gets populated when an instance is created. You might not need to do this if your code never accesses the individual items from the series.