want to populate 2nd select box according to 1st select box value.

divya_triz

Example : country select based on city and state will be display.
i'm trying like following

function getStateList() {
        var aStateList = new Array();
        $.ajax({
            url: '../../controllers/ajax.php?getstate=1',
            type: 'POST',
            dataType: 'json'
        }).done(function(json){
            
            for (var a = 0; a < json.length; a++) {
                console.log(json[a][0]);
                console.log(json[a][1]);
                aStateList[a] = { 'label': json[a][0], 'value' : json[a][1] };
            }
            console.log(JSON.stringify(aStateList) );
            var final_arr = JSON.stringify(aStateList);
            return final_arr;
        }); 
    }
var editor;

$(document).ready(function() {  
    editor = new $.fn.dataTable.Editor( {
        ajax: '../../controllers/teacher_observation_LM.php',
        table: '#example',
        fields: [ 
        {
                label: 'Name of Teacher:',
                name: 'teacher_observation_LM.teacher_id',
                type: 'select'
            }, 
            {
                label: 'Class:',
                name: 'teacher_observation_LM.standard_id',
                type: 'select'              
            }, {
                label: 'Section:',
                name: 'teacher_observation_LM.section_id',
                type: 'select'              
            },{
                label: 'Theme:',
                name: 'teacher_observation_LM.theme',
                type: 'select',
                def: 'Y',
                ipOpts: getStateList()
            }]
    } );

Ajax.php code : 


if($_GET['getstate'] == 1)
{
    $new[0][0] = 'a';
    $new[0][1] = 'aa';
    $new[1][0] = 'b';
    $new[1][1] = 'bb';
    echo json_encode($new);
}

Please help me

Edited by Colin - Syntax highlighting. Details on how to highlight code using markdown can be found in this guide.

colin

This blog post should help, it's asking the same thing.

Cheers,

Colin