Checkboxes to select box

[DeZiner]

I am building a point and click HTML form builder used for credit card processing. I have six checkboxes that I know the names of for credit card types (Visa, Mastercard, Amex, etc.) Once the user checks what they want to accept, these values need to be added to a select box with a name/value pair.

I assume I need to check for the existence of the checkbox, if it exists store it in a list then loop thru the list to create the dropdown....right?

<cfif isDefined('form.Visa')>
<cfset temp = listAppend(somelist, form.visa)>
</cfif>

Please assist with a code snippet for the workhorse page.

Thanks! DeZiner
Never be afraid to try something new.
Remember that amateurs built the Ark.
Professionals built the Titanic

 

[iamkillyou]

Why not just have the user select visa from the select box?
From what you explained it sounds like you want the options in a select box to change based on what value a certain checkbox has, in this case the page needs to be submitted for coldfusion to handle what you want to to. If this is what you want, maybe a javascript solution would be better?

 

[DeZiner]

I need the cf to construct a drop down box based upon which cards a person wants to accept. They can click the checkbox for any combination of the six. This then needs to generate a the code to be copied and pasted into their website.

DeZiner
Never be afraid to try something new.
Remember that amateurs built the Ark.
Professionals built the Titanic

 

[r937]

yes, only checked checkboxes are included by the browser when the form is submitted

i would not bother storing stuff in a list only to have to loop through it and pull stuff out again

CFPARAM is preferred over IsDefined

put these all at the top of the action page -- this aids in understanding, too, since it conveniently documents all the fields that the rest of the page will utilize

<CFPARAM NAME=&quot;form.visa&quot; DEFAULT=&quot;^no&quot;>
<CFPARAM NAME=&quot;form.diners&quot; DEFAULT=&quot;^no&quot;>
<CFPARAM NAME=&quot;form.mastercard&quot; DEFAULT=&quot;^no&quot;>

then just build the output dropdown options --

<select>
<CFIF form.visa NEQ &quot;^no&quot;>
<option value=&quot;V&quot;>Visa</option>
</CFIF>
<CFIF form.diners NEQ &quot;^no&quot;>
<option value=&quot;D&quot;>Diners</option>
</CFIF>
<CFIF form.mastercard NEQ &quot;^no&quot;>
<option value=&quot;M&quot;>Mastercard</option>
</CFIF>
</select>

the only way i would &quot;generalize&quot; this logic is if the various card names were being pulled from the database -- but then you'd already have faced the issue of generating the original checkbox names in a different manner...

rudy

 

[csteinhilber]

Ummmm... why not name all the checkboxes the same, with the card name as the value. Then all the selected card names will be passed to the action page already as a comma-delimited list in the checkbox variable.

<input type=&quot;checkbox&quot; name=&quot;creditcards&quot; value=&quot;visa&quot;> Visa<br />
<input type=&quot;checkbox&quot; name=&quot;creditcards&quot; value=&quot;mastercard&quot;> MasterCard<br />
<input type=&quot;checkbox&quot; name=&quot;creditcards&quot; value=&quot;diners&quot;> Diners Club<br />
       :

Then your action page would have something like:

<cfparam name=&quot;creditcards&quot; default=&quot;&quot;>
         :

<SELECT name=&quot;acceptedcards&quot;>
<cfloop index=&quot;whichcard&quot; list=&quot;#FORM.creditcards#&quot;>
<CFOUTPUT><OPTION VALUE=&quot;#whichcard#&quot;>#whichcard#</OPTION></CFOUTPUT>
</cfloop>
</SELECT>

or, it sounds like you're assembling it as a variable to be plugged into the value of a text area... so...

<CFSET myoutput = &quot;&lt;SELECT name=&quot;acceptedcards&quot;&gt;&quot;>
<cfloop index=&quot;whichcard&quot; list=&quot;#FORM.creditcards#&quot;>
<CFSET myoutput = &quot;#myoutput#&lt;OPTION VALUE=&quot;#whichcard#&quot;&gt;#whichcard#&lt;/OPTION&gt;&quot;>
</cfloop>
<CFSET myoutput = &quot;#myoutput#&/SELECT&gt;&quot;>

Hope it helps,
-Carl

 

[csteinhilber]

Whoops...

that CFPARAM should be:

<cfparam name=&quot;FORM.creditcards&quot; default=&quot;&quot;>

Hope it helps,
-Carl

 

[csteinhilber]

Dang... and of course all my ampersand-&quot;lt&quot;s, ampersand-&quot;gt&quot;s and ampersand-&quot;quot&quot;s in the second loop example are displayed as <, >, and &quot; respectively. I was hoping CODE would suppress that... but now I realize it's the browser.

Ack.


How 'bout

<CFSET myoutput = &quot;&amp;lt;SELECT name=&amp;quot;acceptedcards&amp;quot;&amp;gt;&quot;>
<cfloop index=&quot;whichcard&quot; list=&quot;#FORM.creditcards#&quot;>
<CFSET myoutput = &quot;#myoutput#&amp;lt;OPTION VALUE=&amp;quot;#whichcard#&amp;quot;&amp;gt;#whichcard#&amp;lt;/OPTION&amp;gt;&quot;>
</cfloop>
<CFSET myoutput = &quot;#myoutput#&amp;lt;/SELECT&amp;gt;&quot;>

Hope it helps,
-Carl