Crystal Reports Parameter if not entered

Report Design
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Topic: Parameter if not entered
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Author	Message
Minco Groupie Joined: 28 Nov 2012 Location: United States Online Status: Offline Posts: 62	Topic: Parameter if not entered Posted: 12 Sep 2013 at 4:58am
	I have a parameter that selects a certain customer number, but if the user does not put a value in the parameter [leaves it blank] - I need the report to return ALL customers. How do I accomplish this? Thanks-
	Be kind to those less fortunate.
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DBlank Moderator Joined: 19 Dec 2008 Online Status: Offline Posts: 9053	Posted: 12 Sep 2013 at 5:34am
	are you using 2008?
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Minco Groupie Joined: 28 Nov 2012 Location: United States Online Status: Offline Posts: 62	Posted: 12 Sep 2013 at 5:48am
	Yes I am....
	Be kind to those less fortunate.
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DBlank Moderator Joined: 19 Dec 2008 Online Status: Offline Posts: 9053	Posted: 12 Sep 2013 at 6:24am
	(not(hasvalue(param)) or (hasvalue(param) and param=field))
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Minco Groupie Joined: 28 Nov 2012 Location: United States Online Status: Offline Posts: 62	Posted: 12 Sep 2013 at 6:26am
	This statement goes into the select record formula, I assume?
	Be kind to those less fortunate.
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DBlank Moderator Joined: 19 Dec 2008 Online Status: Offline Posts: 9053	Posted: 12 Sep 2013 at 6:28am
	yes
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DBlank Moderator Joined: 19 Dec 2008 Online Status: Offline Posts: 9053	Posted: 12 Sep 2013 at 6:29am
	if you have other conditions parenth the whole statement above to keep it together Edited by DBlank - 12 Sep 2013 at 6:29am
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Minco Groupie Joined: 28 Nov 2012 Location: United States Online Status: Offline Posts: 62	Posted: 12 Sep 2013 at 6:33am
	Thanks DBlank, I will try this -- I do have another parameter to consider... the user has the choice of running the report by customer (or) by State, and if either param is blank, the report runs for everyone. How would I specify the State part of it?
	Be kind to those less fortunate.
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DBlank Moderator Joined: 19 Dec 2008 Online Status: Offline Posts: 9053	Posted: 12 Sep 2013 at 6:35am
	what happens if they enter both? does one trump the other or do they work in concert?
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DBlank Moderator Joined: 19 Dec 2008 Online Status: Offline Posts: 9053	Posted: 12 Sep 2013 at 6:35am
	do they have to enter at least one in either?
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