radio button list getting an error as undefined

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Hi,
function maxlen()
{
var radioButtons = document.getElementsByName("rbtnPloicyType");

for (var x = 0; x < radioButtons.length; x++) {

if (radioButtons[x].checked) {

var selectedvalue = radioButtons[x].value;
}

}
}

<asp:TextBox ID="txtRegistrationNo" runat="server" MaxLength="100" CssClass="textfield" Width="200px" onchange="return RegistrationRTO(this)" önblur="return maxlen(this);">

Regadrs,
rahul.

Posted 22-Dec-13 20:04pm

naveen pallela

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-12-22T20:45:00

Probably you just tend to mistype things. :-) This way, you could mistype the name, exactly as you mistype things in your question, and than the result of document.getElementsByName could return undefined value, which indicates the "not found" condition. Please check. If possible, use a Javascript debuggers.

—SA

Karthik_Mahalingam · Answer 2 · 2013-12-22T20:56:00

Hi Try like this..

XML

<script type="text/javascript">

       function maxlen() {
           var rb = document.getElementById("<%=rbtnPloicyType.ClientID%>");
           var inputs = rb.getElementsByTagName('input');
           var flag = false;
           var selected;
           for (var i = 0; i < inputs.length; i++) {
               if (inputs[i].checked) {
                   selected = inputs[i];
                   flag = true;
                   break;
               }
           }
           if (flag)
               alert(selected.value);


       }




   </script>

radio button list getting an error as undefined

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