using javascript code to validate the checkbox in Grid view

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• 

  Jignesh Trivedi14y agoPosted May 29, 2012, 4:54 AM

  Accepted answer

  hi,
  
  I think This error due to find some null object and you cannot access null object property.
  
  so try..
  function validateCheckBoxes() {
      var isValid = false;
      var gridView = document.getElementById('<%= GrdEmp.ClientID %>');
      for (var i = 1; i < gridView.rows.length; i++) {
          var inputs = gridView.rows[i].getElementsByTagName('input');
          if (inputs != null && inputs[0] != null) {
              if (inputs[0].type == "checkbox") {
                  if (inputs[0].checked) {
                      isValid = true;
                      return true;
                  }
              }
          }
      }
      alert("Please select atleast one checkbox");
      return false;
  }
  
  you can also use Jquery for same.
  
  hope this will help you.
• VK

  Vishwas Kadamannaya13y agoPosted Feb 21, 2013, 2:53 AM

  The error is due to your grid did not bind and does not have any rows or you dont have any control of type 'input' inside grid.