How to get ObjectSet's entity key name?

Question

I\'ve created a generic ObjectSet in my generic repository.

What I would like to get is the name of the EntityKey of ObjectS

Answer 1

Generic:

public class GenericoRepositorio : IGenericoRepositorio where T : class
{
    protected readonly ObjectSet ObjetoSet;
    protected readonly ModeloContainer Contexto;

    public GenericoRepositorio(ModeloContainer contexto)
    {
        Contexto = contexto;
        ObjetoSet = Contexto.CreateObjectSet();
    }

    public T Carregar(int id)
    {
        object objeto;
        Contexto.TryGetObjectByKey(GetEntityKey(ObjetoSet, id), out objeto);
        return (T)objeto;
    }

    private static EntityKey GetEntityKey(ObjectSet objectSet, object keyValue) where T : class
    {
        var entitySetName = objectSet.Context.DefaultContainerName + "." + objectSet.EntitySet.Name;
        var keyPropertyName = objectSet.EntitySet.ElementType.KeyMembers[0].ToString();
        var entityKey = new EntityKey(entitySetName, new[] { new EntityKeyMember(keyPropertyName, keyValue) });
        return entityKey;
    }
}