private void detach_ThirteenNavigations(ThirteenNavigations entity)
 {
     this.SendPropertyChanging();
     entity.DataKey_VarChar50 = null;
 }
 private void attach_ThirteenNavigations(ThirteenNavigations entity)
 {
     this.SendPropertyChanging();
     entity.DataKey_TinyInt = this;
 }
 private void detach_ThirteenNavigations(ThirteenNavigations entity)
 {
     this.SendPropertyChanging();
     entity.DataKey_SmallDateTime = null;
 }
 partial void DeleteThirteenNavigations(ThirteenNavigations instance);
 partial void UpdateThirteenNavigations(ThirteenNavigations instance);
 partial void InsertThirteenNavigations(ThirteenNavigations instance);