Value is not coming in page load from list box

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Hi All,

I am trying to get the value from a list box on page load. And the values in list box are populating from Java Script using XmlHttp Header.
From Ajax I am able to get Values in list box from server side but I am nor getting the list box value on page load.

Here is the code for xml Http header where the values are updated in list box from response :

var customerList = document.getElementById("ListBox");
for (var count = customerList.options.length-1; count > -1; count--)
{
    customerList.options[count] = null;
}

var customerNodes = customerNode.getElementsByTagName('customer_name');
var textValue;
var optionItem;
for (var count = 0; count < customerNodes.length; count++)
{
    textValue = GetInnerText(customerNodes[count]);
    optionItem = new Option( textValue, textValue, false, false);
    customerList.options.add(optionItem);
}

Please help me in resolving my problem. Thanks in advacne !
Regards,
Divya

Posted 24-Jan-10 1:01am

Divymital

Updated 24-Jan-10 1:06am

Rod Kemp

v2

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3 solutions

Solution 2

Hi,

Thanks for your response but I am still not able to get the values from list box at page load and it gives error stating "Object set to null reference".

Regards,
DIvya

Posted 24-Jan-10 7:36am

Divymital

Solution 3

I got the solution :

http://forums.devshed.com/net-development-87/problem-with-a-listbox-populated-from-javascript-184068.html

This Worked for me ! :)

Thanks for your time.

Regards,
Divya

Posted 24-Jan-10 22:01pm

Divymital

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Sandeep Mewara · Accepted Answer · 2010-01-24T05:25:00

Try something like this:

JavaScript

var typeElem = responseElem[0].getElementsByTagName("Table");       
for (var i = 0; i <typeElem.length;i++)
 {
          var textNode = document.createTextNode(typeElem[i].firstChild.text);
         AppendToSelect(typeElem[i].lastChild.text, textNode);
 }

function AppendToSelect(value, content)
{   
    var opt;
    customerList = window.document.getElementById("ListBox");     
    opt = document.createElement("option");        
    opt.value = value;     
    opt.appendChild(content);    
    customerList.appendChild(opt);
}

You should be able to get the values selected during postback.

Value is not coming in page load from list box

3 solutions

Solution 1

Solution 2

Solution 3

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