Different parameter usage causes problem

Hi there,
I am creating a report based on a sql query. Therefore I have to parameters to filter the query i.e. "SELECT * FROM Person WHERE Birthday >= {?StartDate} AND BirthDay <= {?EndDate}". Both parameters are defined as Date.
This works so far. Then in the Field-Explorer I define a third parameter named "GroupName" which is dynamic and should be filled from the column "Groupname" of the resultset. This parameter is used to identify a leading group which is then separated from all the others.
My problem now is that I am asked twice to input parameters. First those two I defined in the query using the database wizzard (StartDate, EndDate). Then I am asked a second time to input all the three parameters (StartDate, EndDate, GroupName) where the two first parameters where prefilled with what I entered before. But the list of groupname is not filled so I can not select one or multiple values.
My questions are:
- Why am I asked twice and not once including all three parameters
- Why is group not filled in the parameter mask
- Is this behavior by design and if yes how can I workaround
This concerns Crystal Report 11 and 12.
Thanks for every hint.
Kind regards
Patrick
Edited by: Patrick Jox on Sep 18, 2008 9:06 AM

Hi Patrick,
I think in crystal if you create a parameter in command and then if you create a parameter from report then it will prompt twice. The only way is to create all the parameters in command or in report. Why you want to create a groupname parameter in report level but not in command?
Regards,
Raghavendra.G

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