Multiple Sales Order to a single sales Invoice in Ax2012.

Hi All,

Could, any one help me out through code how to post multiple so to a single sales invoice post and show saleseditlines form to user. In used the blow code but there are lot of chanes in Ax2012 in FormLetter Classes:

SalesFormLetter letter=SalesFormLetter::construct(DocumentStatus::Invoice);

    SalesParmLine   parmLine;

    salesLine       _salesLine;

    SalesParmTable  SalesParmTable;

    salesParmUpdate salesParmUpdate;

    SalesTable SalesTableMarked;

   ;

    ttsBegin;

    letter.transDate(systemDateGet());

    letter.multiForm(true);

    letter.specQty(SalesUpdate::All);

    letter.printFormLetter    (true);

   letter.createParmUpdate();

   select forupdate firstonly salesParmUpdate where

   salesParmUpdate.RecId == letter.salesParmUpdate().RecId;

   salesParmUpdate.SumBy = AccountOrder::Account;

   salesParmUpdate.update();

   letter.salesParmUpdate(salesParmUpdate);

   letter.initParameters(letter.salesParmUpdate(),  PrintOut::Current);

    if (SalesTable_ds.anyMarked())

    {

        SalesTableMarked  = SalesTable_ds.getFirst(1,false);

        while(SalesTableMarked)

        {

            letter.createParmTable(SalesParmTable, SalesTable::find(SalesTableMarked.SalesId));

            SalesParmTable.DocumentDate = SalesTable::find(SalesTableMarked.SalesId).DeliveryDate;

            SalesParmTable.Transdate = SalesTable::find(SalesTableMarked.SalesId).DeliveryDate;

            SalesParmTable.DocNumberingCode_LT = "P_SF1";

            SalesParmTable.insert();

            SalesParmTable.clear();

            while select  _salesLine where _salesLine.SalesId == SalesTableMarked.SalesId                letter.createParmLine(_salesLine); 

            SalesTableMarked =  SalesTable_ds.getNext();

        }

    }

    letter.run();

    ttscommit;

But, in Ax2012 there are SalesFormLetter , SalesFormLetterParmData, SalesFormLetterService , SalesFromLetterContract , SalesFormLetterController etc. classes to how to insert record in SalesParmUpdate , SalesParmTable and SalesParmLine Tables while posting...!

Thanks a lot...!!

Daxing