Upload HSN code rate for GST .csv file code

//Added  to Upload GST Tax Rate-13/6/2017
public void Alle_UploadGSTTaxRate()
{
    TaxRuntimeLookupCondition           taxRuntimeLookupCondition;
    TaxRuntimeLookupMeasureResultDetail taxRuntimeLookupMeasureResultDetail;
    TaxRuntimeLookupMeasureResult       taxRuntimeLookupMeasureResult;
    Dialog                              dialog  = new Dialog();
    DialogField                         dialogField;
    str                                 Delimiter = ",";
    str                                 filePath,fileNameOnly,type;
    AsciiIo                             importFile;
    container                           record;
    int                                 totalRecords;
    NumberSeq                           num;
    TaxRuntimeLookup                    runTimeLookup;
    TaxRuntimeDocComponentMeasure       docComponentMeasure;
    TaxRuntimeDocContext                taxRuntimeDocContext;
    TaxSolutionScopeSetup               taxSolutionScopeSetup;
    RefRecId                            ledger;


    dialogField=dialog.addField(extendedTypeStr(FilenameOpen),"Select File to Import","Select file to import");
    dialog.addText("File-Format Sequence: ConsumptionState, HSNCode, SAC, TransactionDateFrom, TransactionDateTo");
    dialog.addText("NetPriceMin, NetPriceMax, PriceIncl, MRPMin, MRPMax");

    dialog.caption("Import File");
    dialog.filenameLookupFilter(['csv','*.csv']);
    if(!dialog.run())

    return;

    [filePath, fileNameOnly, type] = fileNameSplit(dialogField.value());

    importFile = new AsciiIo(dialogField.value(), 'R');

    if((!importFile) || (importFile.status() != IO_Status::Ok))
    {
        warning("Error in opening import file");
        throw(Exception::Error);
    }

    importFile.inFieldDelimiter(Delimiter);

    if((!importFile) || (importFile.status() != IO_Status::Ok))
    {
        warning("Error in opening log file");
        throw(Exception::Error);
    }

    ttsbegin;

    try
    {
        record = importFile.read();

        while(importFile.status() ==  IO_Status::Ok)
        {
            taxRuntimeLookupCondition.clear();
            TaxRuntimeLookupMeasureResultDetail.clear();
            taxRuntimeLookupMeasureResult.clear();

            record = importFile.read();

            if(!record)

            break;

            totalRecords = totalRecords + 1;
            runTimeLookup   =   this.parmRuntimeLookup();

            taxRuntimeLookupCondition.LookupVersion         =   lookup.RecId;
            taxRuntimeLookupCondition.DimValue1             =   conPeek(record,1);  //State
            taxRuntimeLookupCondition.DimValue2             =   conPeek(record,2);  //HSN
            taxRuntimeLookupCondition.DimValue3             =   conPeek(record,3);  //SAC
            taxRuntimeLookupCondition.DateRangeFrom1        =   str2Date(conPeek(record,4),213);    //TransDateFrom
            taxRuntimeLookupCondition.DateRangeTo1          =   str2Date(conPeek(record,5),213);    //TransDateTo
            taxRuntimeLookupCondition.ValueRangeFrom1       =   conPeek(record,6);  //NetPrice Min
            taxRuntimeLookupCondition.ValueRangeTo1         =   conPeek(record,7);  //NetPrice Max
            taxRuntimeLookupCondition.DimValue4             =   conPeek(record,8);  // Price Incl
            taxRuntimeLookupCondition.ValueRangeFrom2       =   conPeek(record,9);  // MRP min
            taxRuntimeLookupCondition.ValueRangeTo2         =   conPeek(record,10); // MRP max

            select firstOnly taxSolutionScopeSetup where
                    taxSolutionScopeSetup.TaxSolutionScope   ==  taxruntimedoccontext::find(TaxRuntimeDocComponentMeasure::find
                                                                    (runTimeLookup.LookupOwnerRecId).DocContext).TaxSolutionScope;

            taxRuntimeLookupCondition.Ledger    =   taxSolutionScopeSetup.Ledger;

            taxRuntimeLookupCondition.write();

            try
            {
                conditionEditingHelper.writtenLookupCondition(taxRuntimeLookupCondition);

                select firstOnly taxRuntimeLookupMeasureResult
                        join forUpdate taxRuntimeLookupMeasureResultDetail
                    where taxRuntimeLookupMeasureResult.LookupCondition == taxRuntimeLookupCondition.RecId
                        && taxRuntimeLookupMeasureResultDetail.LookupMeasureResult == taxRuntimeLookupMeasureResult.RecId;


                taxRuntimeLookupMeasureResultDetail.Value   =   conPeek(record,11);
                taxRuntimeLookupMeasureResultDetail.write();

            }

            catch(Exception::Error)
            {
                throw(Exception::Error);
            }
        }

    }

    catch(Exception::Error)
    {
        Throw(Exception::Error);
    }

    ttsCommit;

    info(strFmt("%1 Lines imported",totalRecords));
}