How to change the option of one combo box on change other combo box item?

2 New Member

I have two combo box.Like combo1 and combo2.In combo1 i have list of countries.On select of specific country i would like get the respective district options in combo2.

using java script
Thanks & Regards

Jan 21 '11 #1

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1675

RamananKalirajan

608

Contributor

Hi Binod Bihari,
This is a sample. I dont know how much it will be useful for you.

Expand|Select|Wrap|Line Numbers

 <html>

<head>

<script type="text/javascript">

var district = new Array("dis1;dis11;dis111;dis1111","dis2;dis22;dis222;dis2222","dis3;dis33;dis333;dis3333");

function loadDist(ths)

{

    //alert(ths.selectedIndex);

    var disSel = document.getElementById('district');

    if(ths.selectedIndex>=1){

      var selDis = district[ths.selectedIndex-1];

      var selDisArr = selDis.split(";");

      while(disSel.length>1)

        disSel.remove(1);

      for(var i=0;i<selDisArr.length;i++)

      {

        if(window.ActiveXObject)

            disSel.add(new Option(selDisArr[i],selDisArr[i]));

        else

            disSel.add(new Option(selDisArr[i],selDisArr[i]),null);

      } 

    }

}

</script>

</head>

<body>

<table>

<tr>

    <td>

        City

    </td>

    <td>

        &nbsp;&nbsp;&nbsp;

    </td>

    <td>

        <select name="city" id="city" onchange="loadDist(this)">

            <option selected>--Select--</option>

            <option value="1">City1</option>

            <option value="2">City2</option>

            <option value="3">City3</option>

        </select>

    </td>

</tr>

<tr>

    <td>

        District

    </td>

    <td>

        &nbsp;&nbsp;&nbsp;

    </td>

    <td>

        <select name="district" id="district">

            <option selected>--Select--</option>

        </select>

    </td>

</tr>

</body>

</html>

Thanks and Regards
Ramanan Kalirajan

Feb 8 '11 #2

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