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08.29.2008 at 06:18AM PDT, ID: 23688738
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9.3

JavaScript Dynamic Forms - auto-incrementing field names and setting maximum entries

Asked by tport_rti in JavaScript, Cold Fusion Markup Language

Tags: ,

I have a dynamic portion of my form that allows people to add additional fields (selecting follow-up and describing the follow-up). The portion of the form looks like this:

<!--- follow-up--->
<tr>
   <td colspan="4">
      <table id="tblFollowup">
      <tr>
                          <td><strong>Followup</strong></td>
                          <td><strong>Description (If other)</strong></td>
      </tr>
                      <tr>
           <td><cfquery name="FollowUp" datasource="#request.DSN#" username="#request.username#" password="#request.password#">
                     select * from tblFollowUp
                                </cfquery>
                                 <cfoutput>
                     <select name="form_idFollowUp[ ]" onKeyDown="typeAhead();">
              <option value="">Please Select</option>
               <cfloop query="FollowUp">
                  <option value="#idFollowUp#" <cfif #getrecord.idfollowup# eq "#idFollowUp#">selected</cfif>>#FollowUp#</option>
               </cfloop>
                     </select>
                           </cfoutput>
                          </td>
                     <td><input name="OtherFollowUp[ ]" type="text" size="30" maxlength="255"></td>
           <td><!---<input type="button" value="Remove" onclick="removeRow(this.parentNode.parentNode)"/>---></td>
              </tr>
              </table>
<a HREF="javascript:void(0)" name="contact" onClick="addRowToTable2();">[Add Another Follow Up]</a>
      </td>
 </tr>
 <!--- end follow-up--->


The problem is, when I submit the form I need the field names to increase (example: form_idFollowup[1], form_idFollowup[2]) instead of submitting in a comma delimited list as one field name. In addition to that, I'm trying to limit the amount of additional entries (max 5).

I would love to know how to pre-populate these for editing (so when they save the page and return the fields are auto-shown and populated) but that might be a different post...

Here's the JavaScript I have thus far...

Thank you in advance for reading this and any assistance you might provide.
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function addRowToTable2()
                              {
                                var tbl = document.getElementById('tblFollowup');
                                var lastRow = tbl.rows.length;
                                // if there's no header row in the table, then iteration = lastRow + 1
                                //var iteration = lastRow;
                              	var iteration = lastRow + 1;
                                var row = tbl.insertRow(lastRow);
                                
                                //  cell 0
                                var cell0 = row.insertCell(0);
                                var el =  document.createElement("select");
								el.name = 'idFollowUp[]';
								el.options[0] = new Option('Please Select', '0');
								el.options[1] = new Option('Call', '1');
								el.options[2] = new Option('Send Email', '2');
								el.options[3] = new Option('Send Thank You Note', '3');
								el.options[4] = new Option('Send Marketing Material', '4');
								el.options[5] = new Option('Send Proposal', '5');
								el.options[6] = new Option('Introduce to Relevant RTI Staff', '6');
								el.options[7] = new Option('Re-engage in 6-12 months', '7');
								el.options[8] = new Option('Other', '8');
								cell0.appendChild(el);
                                
								 //  cell 1
                                var cell1 = row.insertCell(1);
                                var el = document.createElement('input');
                                el.type = 'text';
                                el.name = 'OtherFollowUp[]';
                                el.size = 30;
                                cell1.appendChild(el);
								
                                var cell2 = row.insertCell(2);
                                var el = document.createElement('input');
                                el.type = 'button';
                                el.value = 'Remove';
                                el.onclick=function(){removeRow(row)};
                                cell2.appendChild(el);
                              } 
function removeRow(o){
return o.parentNode.removeChild(o);
}
[+][-]08.29.2008 at 06:25AM PDT, ID: 22345098

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[+][-]08.29.2008 at 06:48AM PDT, ID: 22345317

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About this solution

Zones: JavaScript, Cold Fusion Markup Language
Tags: JavaScript, ColdFusion, IE6 IE7
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Solution Provided By: hielo
Participating Experts: 1
Solution Grade: A
 
 
[+][-]08.29.2008 at 10:41AM PDT, ID: 22347603

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