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Re: Getting checkbox value [message #28755 is a reply to message #28750]

Tue, 08 January 2002 10:34

Paul van Delst
Messages: 364
Registered: March 1997

Senior Member

Lisa Gandy wrote:
>
> I am trying to get the value of a checkbox...meaning I would like to
> know if the checkbox is selected at a certain time. I have looked
> through the references under widget_control and widget_info but
> neither of these keywords seem to return if a checkbox button has been
> selected or not. Did I overlook something?

I usually do this by setting a "selected" field in my widget info structure when the
checkbox/radio button is set/unset. Then if I want to know the value at some arbitrary time
(not relying on an event, say) I just check the corresponding value of the info structure. If
you have a whole bunch of (nonexclusive) buttons any of which may or may not be set at any
time, use an array to store the "select" status of each one (e.g. 0=unset, 1=set or whatever).
Then it's easy to find which buttons are set (or not) using a WHERE on the select status array,
the index result of which you can then apply to the button id array (which I also save in the
info structure) if you, say, wanted to clear or set all the checkboxes/buttons.

Simple minded, but it works pretty well.

paulv

--
Paul van Delst Religious and cultural
CIMSS @ NOAA/NCEP purity is a fundamentalist
Ph: (301)763-8000 x7274 fantasy
Fax:(301)763-8545 V.S.Naipaul

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[Message index]

		Re: Getting checkbox value By: Pavel A. Romashkin on Wed, 09 January 2002 08:18
		Re: Getting checkbox value By: R.Bauer on Wed, 09 January 2002 00:13
		Re: Getting checkbox value By: marc schellens[1] on Wed, 09 January 2002 11:30
		Re: Getting checkbox value By: Pavel A. Romashkin on Tue, 08 January 2002 13:02
		Re: Getting checkbox value By: Paul van Delst on Tue, 08 January 2002 10:34
		sorry By: marc schellens[1] on Thu, 10 January 2002 12:52

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