help to create option

how can i print my midifed form on the condition of voucher type name containing "export"?
if condition not satisfied then tally default form should be print.

 

;Create UDF field and set in tdl

[#Part: VTYP Behaviour]

Add: Line: After: VTYP EachNarr : VTYP MyInvoice

[Line: VTYP MyInvoice]
Fields : Medium Prompt, VTYP MyInvoice
Local : Field : Medium Prompt : Info : $$LocaleString:"Enable Coustomize Invoice Format?"
Invisible : NOT $$IsSales:$Parent

[Field: VTYP MyInvoice]
Use : Logical Field
Storage : MyInv1

[System: UDF]
MyInv1 : Logical : 10005
.
;=========== after enabling modifing the invoice ===========

[#Form: Comprehensive Invoice]
Option: MyInvoice : @@IsSales and $MyInv1:VoucherType:##SVVoucherType

[#form: Simple Printed Invoice]
option :My invoice: @@IsSales and $MyInv1:VoucherType:##SVVoucherType
;;Write continue code