combo box with ajax

[jairajsingh]

how we can change value of one combobox onchange in another combobox using javascript

[Dheeraj Joshi]

Wrong forum :)

Regards
Dheeraj Joshi

[jkmyoung]

Master Slave comboboxes.
1. set up the secondary options in a group
group[0][0] = new Option("some option", 14)
group[0][1] = new Option("another option" 23)
group[1][0] = new Option("next set", 32)
group[1][1] = new Option("more options", 22)

2. Tie the first combobox to a onchange event eg:
<select name="Area" size="1" onChange="redirect(this.options.selectedIndex)">

3. Make the onchange event change the second combobox. (named temp in this example)

            function redirect(x){
 // delete previous options.
            for (m=temp.options.length-1;m>=0;m--){
              temp.options[m]=null;
            }
 
// set new options
            for (i=0;i<group[x].length;i++){
               temp.options[i]=new Option(group[x][i].text,group[x][i].value)
            }
//set first one by default.
          temp.options[0].selected=true
          }
 

Common request.