The key component 'Id' is not a declared property on type 'TypeName', when using base class and private setter

Question

I want to use an abstract base class for entities, which is not mapped on any table:

public abstract class Entity
{
    public virtual int Id { get; private          


        

Answer 1

EF likes to access all keys. Try using protected so the assembly can access the ID but externals cant. Seems like a reasonable question for the EF team to me.

See related post Does the Entity Framework code first support readonly navigation property

Answer 2

make setter of id in entity class protected :

public abstract class Entity
{
    public virtual int Id { get; protected set; }
}

i tried this . it will be work