private void detach_ExtractItems(ExtractItem entity)
 {
     this.SendPropertyChanging();
     entity.ExtractPersonStaging = null;
 }
 private void attach_ExtractItems(ExtractItem entity)
 {
     this.SendPropertyChanging();
     entity.Extract = this;
 }
 partial void UpdateExtractItem(ExtractItem instance);
 partial void DeleteExtractItem(ExtractItem instance);
 partial void InsertExtractItem(ExtractItem instance);