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07/01/2009 at 12:28AM PDT, ID: 24535620

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9.1

Validate check box selection

Asked by Web_Admin in JavaScript, Java Server Pages (JSP)

Hi experts,

This is going to drive me crazy. i have my js that validates the count of selected check box. when i tried to print the length of the check box. it returns "undefined".
The check box is created dynamiclly from database. please chek my code

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             Js:
 
function MyContractsValidation(){
 
    alert('Enter');
alert('number of check box:'+document.theform.contractcb.length);    
 document.getElementById('message1').style.visibility = 'hidden';
   var checkbox_choices = 0;
   // Loop from zero to the one minus the number of checkbox button selections
   for (counter = 0; counter < document.theform.contractcb.length; counter++)
   {alert('Enter for loop');
      // If a checkbox has been selected it will return true (If not it will return false)
      if (document.theform.contractcb[counter].checked)
      {
         checkbox_choices = checkbox_choices + 1;
         alert("total check box: "+checkbox_choices);
         
      }
 
   }
 
html form:
 
 
    
    <form action="my_contracts.jsp" method="POST"  name="theform" onsubmit="return MyContractsValidation();">
 
        <input type="hidden" name="remove" value="remove">
        <input type="hidden" name="contractsSize" value="1">    
   
    
    
    
         <tr class="odd">
        <td width="2%" align="center" nowrap="nowrap" height="20">
        <input type="checkbox"  name=contractcb value="4"></td>
        <td width="48%" height="20">
        <a href="contract_details.jsp?id4">contract four</a></td>
        <td width="14%" align="center">
        CDD</td>
 
        <td width="17%" align="center">
        45646</td>
        <td width="15%" align="center">
        24-06-2009</td>
        
        <td width="2%" align="left" nowrap="nowrap">
            <div class='red_box'></div>
        </td>
        
    </tr>
 
    
</form>

           
         

20091111-EE-VQP-91 - Hierarchy / EE_QW_4_20070622

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Validate check box selection

Asked by Web_Admin in JavaScript, Java Server Pages (JSP)

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