partial void DeleteNewsValue(NewsValue instance);
 partial void UpdateNewsValue(NewsValue instance);
 private void detach_NewsValues(NewsValue entity)
 {
     this.SendPropertyChanging();
     entity.NewsKey = null;
 }
 partial void InsertNewsValue(NewsValue instance);
 private void attach_NewsValues(NewsValue entity)
 {
     this.SendPropertyChanging();
     entity.NewsKey = this;
 }