Require at least one checkbox?

[mikeap]

I have a form which dynamically spits out my users so they can be assigned to a project. How can I require at least one of the checkboxes that it spits out or is their a better method to my madness?

[Guest · Accepted solution]

server side would be:

<cfif NOT structKeyExists(form, 'whichLogin')>
handle error here
</cfif>

client side would be:

1) add an onsubmit="return validate(this);" in your form tag.
2) add the following code block:

[Dan_Bracuk]

quote:

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Originally posted by: mikeap
I have a form which dynamically spits out my users so they can be assigned to a project. How can I require at least one of the checkboxes that it spits out or is their a better method to my madness?

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Instead of check boxes use radio buttons or a select.

[Guest]

but radio buttons or a select (unless the latter has the multiple attribute assigned) would only allow one selection. if I understood correctly (and don't get me wrong, it's a distinct possibility that I don't <g>), the OP wants to make sure at -least- one of the records is chosen (implying that there could be more).

[mikeap]

You could use a select allowing for multiple selections but I prefer to use checkboxes because it allows me greater control but I guess it's just a matter of preference.

Thanks CJ for the answer! I figured it would be a Javascript solution ... which I know barely anything about. Thanks again!