public void AddBook(string tam, string name, int idpub)
{
Guid idUs = (from datos in ctx.aspnet_Users where datos.UserName == name select datos.UserId).ToArray()[0];
int? idPer = (from per in ctx.libros select per.id).Max();
int id;
if (idPer == null)
id = 1;
else
{
id = idPer.Value;
id += 1;
}
libro book = new libro() {
id = id,
autor = autor,
idioma = idioma,
tamano = tam,
paginas = paginas,
tema = tema,
avatar = avatar,
id_publicacion = idpub
};
ctx.libros.InsertOnSubmit(book);
ctx.SubmitChanges();
}
partial void Deletelibro(libro instance);
partial void Updatelibro(libro instance);
partial void Insertlibro(libro instance);
private void detach_libros(libro entity)
{
this.SendPropertyChanging();
entity.publicacion = null;
}