public InternalPurchaseTableyCollection FetchAll()
 {
     InternalPurchaseTableyCollection coll = new InternalPurchaseTableyCollection();
     Query qry = new Query(InternalPurchaseTabley.Schema);
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public InternalPurchaseTableyCollection FetchByQuery(Query qry)
 {
     InternalPurchaseTableyCollection coll = new InternalPurchaseTableyCollection();
     coll.LoadAndCloseReader(qry.ExecuteReader()); 
     return coll;
 }
 public InternalPurchaseTableyCollection FetchByID(object Id)
 {
     InternalPurchaseTableyCollection coll = new InternalPurchaseTableyCollection().Where("ID", Id).Load();
     return coll;
 }