As of EF Core 8, it's now possible to specify a class or a struct as a Complex Type. The following example specifies that the Address struct should be considered as a complex type:
language-csharp
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public class Order { public int OrderId { get; set; } public DateTime OrderDate { get; set; } public Address ShippingAddress { get; set; } public Address BillingAddress { get; set; } //... other order-related properties } public struct Address { public string Street { get; set; } public string City { get; set; } public string State { get; set; } public string Country { get; set; } public string PostalCode { get; set; } //... other address-related properties } protected override void OnModelCreating(ModelBuilder modelBuilder) { modelBuilder.Entity<Order>(x => { x.ComplexProperty(y => y.ShippingAddress, y => { y.IsRequired(); }); x.ComplexProperty(y => y.BillingAddress, y => { y.IsRequired(); }); }); base.OnModelCreating(modelBuilder); } NOTE: When specifying a ComplexProperty, you must also specify the navigation IsRequired in your fluent mapping.
Data Annotations
The Data Annotations equivalent for the ComplexProperty method is the ComplexType attribute.
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