partial void DeleteMusicGroupXMusic(MusicGroupXMusic instance);
partial void UpdateMusicGroupXMusic(MusicGroupXMusic instance);
private void detach_MusicGroupXMusic(MusicGroupXMusic entity)
{
this.SendPropertyChanging();
entity.MusicGroup = null;
}
partial void InsertMusicGroupXMusic(MusicGroupXMusic instance);
private void attach_MusicGroupXMusic(MusicGroupXMusic entity)
{
this.SendPropertyChanging();
entity.MusicGroup = this;
}