Technical Questions
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Keikoku
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Quote Keikoku Replybullet Topic: About displaying items
    Posted: 02 Dec 2010 at 7:19am
I have a column that contains all sorts of integers. I have a parameter which allows the user to choose one of the three filter options: 'pos', 'neg', or 'all'

I then wrote formula that will display only the rows that match the filter like


if ({?myfilter} = 'pos') then
   {number} >= 0
else if ({?myfilter} = 'neg') then
   {number} < 0


This works, so then I went to do my last filter option, but wasn't sure how to do it. I then found that this works


else
   {number} = {number}


Which I don't really like because of how it looks.
Are there other ways to do it?
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DBlank
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Quote DBlank Replybullet Posted: 02 Dec 2010 at 7:39am
select statement as :
({?myfilter} = 'pos' and {number} >= 0)
or
({?myfilter} = 'neg') and {number} < 0)
or
({?myfilter} = 'all')
 
 
Suppression as :
NOT (
({?myfilter} = 'pos' and {number} >= 0)
or
({?myfilter} = 'neg') and {number} < 0)
or
({?myfilter} = 'all')
)


Edited by DBlank - 02 Dec 2010 at 7:47am
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Keikoku
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Quote Keikoku Replybullet Posted: 02 Dec 2010 at 7:48am
Hmm so that's how crystal selects/suppresses things.
alright thx!
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DBlank
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Quote DBlank Replybullet Posted: 02 Dec 2010 at 7:55am
It is one way.
Try and avoid using If statements in your select.
Both the select and suppress options are looking for a boolean evaluation.
Select:TRUE=include and FALSE=exclude
Suppression: TRUE=Suppress and FALSE=Show


Edited by DBlank - 02 Dec 2010 at 8:06am
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