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Optional Parameter fields in Crystal Reports

Posted on 2014-12-15
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Last Modified: 2015-01-16
I have a crystal report that was written in crystal 2008 off a 2008 sql server.
The report has a total of 5 parameters.
Not all the parameters need to be selected for the report to be ran.
Is there a way to make some optional and some required?
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Question by:metalteck
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Assisted Solution

by:vasto
vasto earned 250 total points
ID: 40501175
Edit the parameter and set the optional prompt to true as it is shown in the attached file. In you formulas you can use HasValue to check if the parameter was set
if hasvalue({?Parameter} then 
....

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Accepted Solution

by:
mlmcc earned 250 total points
ID: 40501894
Be sure the value returned is TRUE if there is no value passed.

I generally do this by

(Not HasValue({?Param1}) OR {?Param1} = {Field1})

mlmcc
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