public InternalInvoiceSubTableCollection FetchAll()
 {
     InternalInvoiceSubTableCollection coll = new InternalInvoiceSubTableCollection();
     Query qry = new Query(InternalInvoiceSubTable.Schema);
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public InternalInvoiceSubTableCollection FetchByQuery(Query qry)
 {
     InternalInvoiceSubTableCollection coll = new InternalInvoiceSubTableCollection();
     coll.LoadAndCloseReader(qry.ExecuteReader()); 
     return coll;
 }
 public InternalInvoiceSubTableCollection FetchByID(object EntryNumber)
 {
     InternalInvoiceSubTableCollection coll = new InternalInvoiceSubTableCollection().Where("EntryNumber", EntryNumber).Load();
     return coll;
 }