SID-00241: Populate a drop down list from a table within a topic

Status:	Answered	TWiki version:	4.2.3	Perl version:
Category:	CategoryForms	Server OS:		Last update:	16 years ago

I'm trying to populate a drop down list much like the one found on the support page (http://twiki.org/cgi-bin/view/Support). Below is the code from that page that I'm having difficulty understanding:

Search by category:

<select name="topic"> %CALC{$LISTJOIN($sp, $LISTMAP(<option value='$item'>$PROPERSPACE($item)</option>, $GET(cat)))}% </select>

I use a drop down menu within a form and take the entries from a table within a topic. The form row is:

| SpecCategory | select | 1 | | Specification Category | |

Now I would like to do the same except not within a form. Could someone kindly explain the above formula using %CALC% or if there's an alternate way of doing this that would also be appreciated.

-- JaniHamalainen - 01 Apr 2009

Discussion and Answer

Perhaps some excessive indenting makes it clearer. I assume it's the TWiki markup that confuses you, not the HTML, so I've also annotated that a bit. If you are still confused, then by what part? (i.e., which line number?)

-- SeanCMorgan - 02 Apr 2009

Closing this question after more than 30 days of inactivity. Feel free to reopen if needed. Consider engaging one of the TWiki consultants if you need timely help. We invite you to get involved with the community, it is more likely you get community support if you support the open source project!

-- PeterThoeny - 2009-06-02

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