Javascript Dropdownlist not working in Chrome,Firefox

Question

0.00/5 (No votes)

See more:

Hi all,

I am using C#.net, My problem is - I am populating dropdownlist using Ajax,Javascript, its working in IE but not in Firefox and Chrome.
Please help me

C#

<pre lang="cs"><script type="text/javascript">
function showHint(str)
{
var xmlhttp;
var splitValue;

if (str.length==0)
  {
  document.getElementById(&quot;txtHint&quot;).innerHTML=&quot;&quot;;
  return;
  }
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject(&quot;Microsoft.XMLHTTP&quot;);
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 &amp;&amp; xmlhttp.status==200)
    {
        document.getElementById(&#39;ddl_location&#39;).length=0;
        //document.form1.ddl_location.options.length=0;
        if(navigator.appName==&quot;Microsoft Internet Explorer&quot;)
        {
            var res=xmlhttp.responseText;
            var splitStr=res.split(&quot;,&quot;);

            var arrRes=new Array();
            for (var i=0; i &lt; splitStr.length;++i)
            {
                splitValue=splitStr[i].split(&quot;-&quot;);
                addOption(document.getElementById(&#39;ddl_location&#39;).value, splitValue[0],i);
                //addOption(document.form1.ddl_location, arrRes[i], arrRes[i]);

            }
        }
        else
        {
            document.getElementById(&quot;txtHint&quot;).innerHTML=xmlhttp.responseText;
        }
    }
  }
xmlhttp.open(&quot;GET&quot;,&quot;GetLocations.aspx?reqL=&quot;+str,true);
xmlhttp.send();
}

function addOption(selectbox,text,value )
{
var select = document.getElementById(&#39;ddl_location&#39;).value;
var optn = document.createElement(&quot;option&quot;);  //it was option
optn.text = text;
optn.value = value;
document.getElementById(&#39;ddl_location&#39;).options.add(optn);
}</pre>

</script>

Aspx Page:
<body>

<form name="form1" id="form1" runat="server">

First name: <input type="text" id="txt1" onkeyup="showHint(this.value)" />
<asp:DropDownList ID="ddl_location" name="ddl_location" runat="server" AutoPostBack="True" Width="198px" >

</form>
</body>
</html>

This is working on IE but not in Chrome and Firefox

Posted 12-Apr-12 21:57pm

Sweetynewb

Updated 13-Apr-12 1:24am

v3

Add a Solution

Comments

jim lahey 13-Apr-12 5:01am

Help us to help you: we can't telepathically see your code so you'll have to show it to us in the traditional way

deepakaitr12345 13-Apr-12 6:54am

I think insted of using the document.getelementbyid("")
mathod use the $get or $find mathod

hope this will solve your problem

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Manfred Rudolf Bihy · Answer 1 · 2012-04-13T01:08:00

Please use a libary to ensure cross browser compatibility. jQuery is a great free library with an active community developing it plus loads of plugins. I strongly advise you to use jQuery[^] or maybe even PrototypeJS[^]. I wouldn't really recommend PrototypeJS anylonger since jQuery is the better alternative in my opinion, but having an alternative can be handy sometimes :).

Regards,

Manfred