partial void InsertGroupMessage_Alias(GroupMessage_Alias instance);
private void detach_GroupMessage_Alias(GroupMessage_Alias entity) { this.SendPropertyChanging(); entity.Alias = null; }
partial void DeleteGroupMessage_Alias(GroupMessage_Alias instance);
private void attach_GroupMessage_Alias(GroupMessage_Alias entity) { this.SendPropertyChanging(); entity.GroupMessage = this; }
partial void UpdateGroupMessage_Alias(GroupMessage_Alias instance);