How to get check box in ax 2012

Hi Gopinath ,
I added this filed at Sales Quotation header level (offer ).. table name salesquotation table.. i want print this value in excel sheet .
suppose if am select the check box value should print "offer" , if not select the checkbox value should print "sample"

i added this code :
if(salesQuotationTable.PC_Offer == NoYesCombo::Yes)
{
offer = 'Offer';
}
else
{
offer = 'Sample';
}
and i tried this one also .
i added field edt Noyesid
if(salesQuotationTable.PC_Offer == NoYes::Yes)
{
offer = 'Offer';
}
else
{
offer = 'Sample';
}
this two not working my scenario ...
should i write code in the modified method in the salestable level ?
please suggest me

vamshidher said:

if(salesQuotationTable.PC_Offer == NoYes::Yes)

This is OK.

We don't know if you are fetching salesQuotationTable correctly? Are your getting the correct value in (salesQuotationTable.PC_Offer.

Have you tried to debug?