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Set Maximum Selections In Multi-Select List Box


Elena
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Try this in the footer of the submission page

 

<script type="text/javascript">
 /* "fieldName" is the variable name for the listbox type form element field. */
   var fieldName = "InsertRecordFirst_Name";

   var x=document.getElementsByName(fieldName);
   x[0].multiple=true;
 var el = document.getElementsByTagName('select')[0];

document.getElementById('Submit').onmouseover= function (){

var el = document.getElementsByTagName('select')[0];
getSelectValues(el);
}

function getSelectValues(select) {

var result = [];
  var options = select && select.options;
  var opt;

  for (var i=0, iLen=options.length; i<iLen; i++) {
    opt = options[i];

    if (opt.selected) {
      result.push(opt.value || opt.text);
    }
  }

if (result.length>10){
alert('Select max 10 options for First Name');
return false; 

  }
}

</SCRIPT>

 

Replace InsertRecordFirst_Name with the actual listbox ID value

 

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