partial void DeleteCurso(Curso instance);
 partial void UpdateCurso(Curso instance);
		private void detach_Curso(Curso entity)
		{
			this.SendPropertyChanging();
			entity.Usuario = null;
		}
 partial void InsertCurso(Curso instance);
		private void attach_Curso(Curso entity)
		{
			this.SendPropertyChanging();
			entity.Usuario = this;
		}