Date parameter in Crystal

Question

Hi Experts,
I have a client who wants to add a from and to date in the parameter of a Invoice Crystal report.
Here is the Parameters I have:
{OINV.DocStatus} = "O" and
{OCRD.CardName} = {?Customers@SELECT DISTINCT T0.[CardName] FROM OINV T0 WHERE T0.DocStatus = 'O' ORDER BY T0.[CardName]} and
{OINV.DocNum} >= {?BeginDate@Select T0.[DocNum] FROM OINV} and
{OINV.DocNum} <= {?EndDate@Select T0.[DocNum] FROM OINV}
I added the OINV.DocNum, but get errors with this.
How can I get a from and to date on the OINV.DocNum field in this crystal report?
Thanks,
Marli

Answer 1

Gordon,
Thanks.
When I enter this in the Formula workshop I get the error 'There is an error in this formula. Do you want to save it anyway?', then another error 'This field name is not known.'
Here is the full query: (I only add the OINV.DocDate part)
{OINV.DocStatus} = "O" and
{OCRD.CardName} = {?Customers@SELECT DISTINCT T0.[CardName] FROM OINV T0 WHERE T0.DocStatus = 'O' ORDER BY T0.[CardName]} and
{OINV.DocDate} >= {?BeginDate@Select T0.[DocDate] FROM OINV T0} and
{OINV.DocDate} <= {?EndDate@Select T0.[DocDate] FROM OINV T0}
Thanks for your help.
Marli