Map Object value to Entity Core

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I have the class 

public class Email  
{
     public string Endereco { get; }
     public string  NomeExibicao{ get; }
}

I am trying to map in EF Core using the following code

 builder.Property(e => e.Email.Endereco)
            .HasColumnName("EmailUsuario");

When I try to run the update the message appears :

The Expression 'e => e.email.Endereco' is not a Valid Property Expression. The Expression should represent a Property access: ’t => t.Myproperty'. Parameter name: propertyAccessExpression

In EF 6 it worked well.

Other mappings of the same Entity are working.

c# entity-framework-core

1 answer

1


To map in Entity Framework Core is different, the resource used is Property types (Owned types), a basic example for your question:

The two Entities:

public class People
{
    public int Id { get; set; }
    public string Name { get; set; }
    public Email Email { get; set; }
}
public class Email  
{
     public string Endereco { get; set; }
     public string NomeExibicao { get; set; }
}

Setup Fluent:

builder.ToTable("People")
    .OwnsOne(x => x.Email, x =>
    {
        x.Property(a => a.Endereco)
            .HasColumnName("Endereco")
            .IsRequired()
            .HasMaxLength(50);
        x.Property(a => a.NomeExibicao)
            .HasColumnName("NomeExibicao")
            .IsRequired()
            .HasMaxLength(50);
    });

As in this configuration the table that could be written this data the same belongs automatically to table People as explained in the documentation

People

Id
Name
Endereco
NomeExibicao

References

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