partial void DeleteDIC_MySecondDictionary(DIC_MySecondDictionary instance);
 partial void InsertDIC_MySecondDictionary(DIC_MySecondDictionary instance);
 partial void UpdateDIC_MySecondDictionary(DIC_MySecondDictionary instance);
 private void detach_DIC_MySecondDictionaries_refFirstDictionary(DIC_MySecondDictionary entity)
 {
     this.SendPropertyChanging();
     entity.DIC_MyFirstDictionary_refFirstDictionary = null;
 }