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07.05.2008 at 12:14PM PDT, ID: 23540938
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6.4

CFFORM checkbox validation with ActionScript

Asked by wwp_it in ActionScript, ColdFusion Application Server, Cold Fusion Markup Language

Tags: ,

I am developing a form for my teachers on staff to add assignments into a database. The end product will be a web application for students to submit papers in PDF format to their teachers. The web application interfaces with our student management system as well as our webserver (IIS, 6.0, Coldfusion MX7) and Fileserver (Windows 2003)

I have chosen to use <cfform format="flash"> for a number of reasons. I know I should be using FLEX, but don't have the time to figure out a new product/language. I have been struggling with this for hours on end.

The issue I am having is form validation. I need to ensure that the teachers check off at least one of their classes before submitting their assignment. Since the checkboxes and their names are generated dynamically, I need to validate a certain number of classes which is not constant. If no checkboxes for the classes have been checked, I need an alert box to pop up and form submission to be stopped.

All the research I have done online states that if I use FLASH format, the validation must be done in ACTIONSCRIPT, not JAVASCRIPT. I am unfamiliar with AS and only slightly familiar with JS. I am knowledgeable with ColdFusion.

The material I read online about JS validation stated that it could be done by the (cf)form input's ID attribute rather than the name. I named all of the input's ID attibutes the same, but the actual input names are dynamic.

When I add the onSubmit="#verify#" into the <cfform> tag, the form doesn't build. I have toyed with the syntax and can't seem to get it correct.

The SaveContent area above the form was an ActionScript attempt I pulled from Ray Camden's website. Not sure if my modified code is the issue there or not. I have also read on Adobe's site, here at experts-exchange, as well as other sites that the Java validation within Flash forms executes before the <cfform onsubmit=""> attribute. If that is the case, validation by actionscript should be wholly possible? no?

I am a teacher and web application programming is not my primary job, so please excuse my knowledge level. I appreciate any help you can offer.  Thanks!

-WWP_IT (Allan)

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<cfsavecontent variable="verify">
	var checkSelected = false;
	var checkboxid;
	checkboxid = document.getElementById('classcheckbox');
	for (i = 0;  i < updateassignmentform.checkboxid.length;  i++){
	  	if (updateassignmentform.checkboxid[i].checked){
			checkSelected = true;
	  }
	}
    if (!checkSelected){
	  	mx.controls.Alert.show('At least one checkbox must be selected!','Error');
   		return false;
	}
	else {
               return true;
      }
</cfsavecontent>
 
<cfform action="updateassignment.cfm" name="updateassignmentform" id="updateassignmentform" preloader="yes" format="flash" style="backgroundAlpha: 0;" wmode="transparent" skin="haloblue" height="400" width="700" onSubmit="#verify#">
    <cfformgroup type="vertical">
        <cfinput name="name" label="Assignment Name" type="text" width="150">
        <cftextarea name="description" label="Assignment Description" cols="54" rows="3" wrap="virtual"></cftextarea>
    </cfformgroup>
    <cfformitem type="hrule"></cfformitem>
    <cfformgroup type="vertical">
    <cfinput name="assigndate" label="Assigned Date" type="datefield" width="150">
    </cfformgroup>
    <cfformitem type="hrule"></cfformitem>
    <cfinput name="duedate" label="Due Date" type="datefield" width="150">
    <cfformitem type="hrule"></cfformitem>
    <cfformgroup type="vertical" label="Classes To Post">
        <cfloop index="i" from="1" to="#TeacherClassListing.recordcount#">
            <cfinput type="Checkbox" name="S#TeacherClassListing.SectionID[i]#" id="classcheckbox" Label="#TeacherClassListing.name[i]# #TeacherClassListing.number[i]#-#TeacherClassListing.sectionnumber[i]#">
        </cfloop>
    </cfformgroup>
    <cfformitem type="hrule"></cfformitem>
    <cfformgroup type="vertical" label="Options">
        <cfinput type="checkbox" name="AllowUpload" label="Allow File Upload">
        <cfinput type="checkbox" name="DCActive" label="Activate In Digital Classroom">
    </cfformgroup>
    <cfformitem type="hrule"></cfformitem>
    <cfinput type="hidden" name="mode" value="#url.mode#">
    <cfinput type="submit" name="SubmitUpdate" value="Update">
</cfform>
[+][-]07.06.2008 at 08:12PM PDT, ID: 21942580

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About this solution

Zones: ActionScript, ColdFusion Application Server, Cold Fusion Markup Language
Tags: Actionscript, Coldfusion, Firefox, IE7
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Solution Provided By: wwp_it
Participating Experts: 0
Solution Grade: A
 
 
 
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