Re[2]: when is failing to [URL]ize values in a comparison ri
This WebDNA talk-list message is from 1999
It keeps the original formatting.
numero = 25370
interpreted = N
texte = The appropriate way to test if a variable is not defined is to use the [Raw][/Raw] tags like this:[ShowIf [aaa]=[Raw][aaa][/Raw]]Shown only if [aaa] has no value[/ShowIf]Nonetheless, if you surrounded _BOTH_SIDES_ of the test with [URL], you are always safe. In your example, the only time the test should be true is if the field or variable [aaa] contains the value [Blank].John Peacock____________________Reply Separator____________________ Subject: Re: when is failing to [URL]ize values in a comparison risky Author:
(WebCatalog Talk) Date: 12/9/99 10:32 PMJohn,How about when comparing to *nothing*?[showif [URL][aaa][/URL]=] some code [/showif]will evaluate to true (show the result of some code) even if [aaa] has no value? I thought that when I tried this one time, webcat was resolving the above to [showif %5baaa%5d=] some code [/showif], so the code never executed, which was not the idea.-John ------------------------------------------------------------- Brought to you by CommuniGate Pro - The Buzz Word Compliant Messaging Server. To end your Mail problems go to .This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to
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The appropriate way to test if a variable is not defined is to use the [raw][/Raw] tags like this:[ShowIf [aaa]=[raw][aaa][/Raw]]Shown only if [aaa] has no value[/ShowIf]Nonetheless, if you surrounded _BOTH_SIDES_ of the test with [url], you are always safe. In your example, the only time the test should be true is if the field or variable [aaa] contains the value [Blank].John Peacock____________________Reply Separator____________________ Subject: Re: when is failing to [url]ize values in a comparison risky Author: (WebCatalog Talk) Date: 12/9/99 10:32 PMJohn,How about when comparing to *nothing*?[showif [url][aaa][/URL]=] some code [/showif]will evaluate to true (show the result of some code) even if [aaa] has no value? I thought that when I tried this one time, webcat was resolving the above to [showif %5baaa%5d=] some code [/showif], so the code never executed, which was not the idea.-John ------------------------------------------------------------- Brought to you by CommuniGate Pro - The Buzz Word Compliant Messaging Server. To end your Mail problems go to .This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to
jpeacock@univpress.com
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