Entity Framework Core. Code-First Approach

Entity Framework Core. Code-First Approach

- FK defines relationships of tables
- Navigation Property defines the type of relations: One-To-One, One-To-Many, Many-To-Many
- If FK wasn't initialized, EF creates it automatically

How To Use?
1. Design a DB on the paper
2. Set FK (FK points from the main table to the dependent table)
3. Define Navigation property

// ==========================

public class Customer
{
        public int CustomerId { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Email { get; set; }

        // Navigation property (or Link)
        public List<Order> Orders { get; set; }
}

public class Order
{
        public int OrderId { get; set; }
        public string ProductName { get; set; }
        public string Description { get; set; }

        // Navigation property (or Link)
        public Customer Customer { get; set; }
}