Please help:

I'm developping an interface to download Transaction->Estimate/Quote records from NetSuite to a thrid party processing system. However, I can get all data but the item list, the item list is empty but I know there are item data in actual.

My .Net code is as below:

private void SearchBaseIO()
{
this.Login(true);

TransactionSearch transactionSearch = new TransactionSearch();
TransactionSearchBasic transactionSearchBase = new TransactionSearchBasic();

SearchDateField lastModifyDate = null;


SearchStringField tranId = new SearchStringField();
tranId.@operator = SearchStringFieldOperator.contains;
tranId.operatorSpecified = true;
tranId.searchValue = "51589";
transactionSearchBase.tranId = tranId;

string transType = InitializeRefType.estimate.ToString();
SearchEnumMultiSelectField type = new SearchEnumMultiSelectField();
type.@operator = SearchEnumMultiSelectFieldOperator.anyOf;
type.operatorSpecified = true;