Question

Coldfusion Forms and Variable Checkboxes

Asked by: monosyth

Hi,

I'm trying to loop through a list of my customers and email them if they have been checked off in a form. I get an error if one is not checked that it is not defined.

Code is below, any help?

Hopefully this makes sense.

I get this error:

Element 237CHECK is undefined in FORM.
The error occurred in : line 1
-1 : Unable to display error's location in a CFML template.

<cfif isdefined('FORM.Submit')>
 
<cfloop query="Userinfo">
 
<cfset thischeck = '#Userinfo.ID#check'>
<cfset emailthis = #evaluate('form.#thischeck#')#>
<cfparam name="#emailthis#" default="no">
 
<cfif #emailthis# eq 'yes'>
 
<cfmail>do the email thing</cfmail>
 
</cfif>
 
</cfloop>
 
</cfif>
 
 
<cfform>
<cfloop query="Userinfo">
<cfinput type="checkbox" name="#Userinfo.ID#check" value="yes"> #Userinfo.Company# <br>                                    
</cfloop>
</cfform>

                                  
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Asked On
2009-06-11 at 18:08:12ID24485295
Tags

coldfusion

,

form

,

checkbox

Topics

ColdFusion Application Server

,

Cold Fusion Markup Language

Participating Experts
1
Points
500
Comments
2

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Answers

 

by: _agx_Posted on 2009-06-11 at 19:44:10ID: 24608731

Unless you really need dynamic field names, you could give all the checkboxes the same name.  But set the value to the userInfo.ID.  

<cfform>
<cfloop query="Userinfo">
<cfinput type="checkbox" name="emailOption" value="#Userinfo.ID#"> #Userinfo.Company# <br>                                    
</cfloop>

Then the checked boxes will be passed as a single list of id's and you can just loop through it.

<cfparam name="form.emailOption" default="">
<!--- the list will only contain the id's of the checked boxes --->
<cfloop list="#form.emailOption#" index="userID">
      <cfmail>do the email thing</cfmail>
</cfloop>
 


 

by: monosythPosted on 2009-06-11 at 21:01:46ID: 31591597

Genius! Thanks!!!

20120131-EE-VQP-002

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