<html>
<head>
<title>Salix.gr - Linked selected boxes demo page</title>
<META NAME="author" CONTENT="Panos Kyriakakis">
<meta name="description" lang="en" content="Demo page. Linked selected boxes that load items from database using AJAX">
<meta name="keywords" lang="en" content="Demo page, Linked selected boxes, Content management, Components and tools to manage content, AJAX, Interact with the Web server without page reloading">
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<link href="http://www.salix.gr/forAll.css" rel="stylesheet" type="text/css"></link>
</head>
<body>
<script src="prototype.js" type="text/javascript"></script>
<h2><a href="http://www.salix.gr/ajax_linked_selectboxes">Salix.gr - Ajax Linked Select boxes Demo 2</a></h2>
<p>
Now all data are on the same table.
</p>
<pre>
CREATE TABLE lsd_demo_2 (
rec_id int(11) NOT NULL auto_increment,
parent_id int(11) NOT NULL default '0',
descr varchar(50) collate latin1_bin NOT NULL default '',
PRIMARY KEY (rec_id)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin;
</pre>
<p>
Items for first (parent) select box parent_id=0.
Using the new parameter to set an extra field in where clause parent items are filtered.
</p>
<?php
include("top_script.php");
include("sc_classes.php");
$sc_ajax_select_boxes = new sc_ajax_select_boxes();
$sc_ajax_select_boxes->add_select_box('lsd_demo_2','rec_id','descr','rec_id',2,'sel1','sel_id_1','', 'parent_id=0');
$sc_ajax_select_boxes->add_select_box('lsd_demo_2','rec_id','descr','rec_id',11,'sel2','sel_id_2','');
$sc_ajax_select_boxes->add_select_box('lsd_demo_2','rec_id','descr','rec_id',43,'sel3','sel_id_3','');
$sc_ajax_select_boxes->link_select_boxes('sel1','sel2', 'parent_id',2);
$sc_ajax_select_boxes->link_select_boxes('sel2','sel3', 'parent_id',10);
$sc_ajax_select_boxes->place_jscripts();
$sc_ajax_select_boxes->show_select_box('sel1');
$sc_ajax_select_boxes->show_select_box('sel2');
$sc_ajax_select_boxes->show_select_box('sel3');
?>
<p>
To use select box onChange event:<br /><br />
</p>
<pre>
<script type="text/javascript">
Event.observe(window, 'load', initSearch, false);
function initSearch() {
Event.observe('sel_id_3', 'change', dosearch, false);
window.alert('ads');
}
function dosearch(){
var val1, val2, val3;
val1='';
val2='';
val3='';
if( $('sel_id_1')!=null);
val1= $('sel_id_1').value;
if( $('sel_id_2')!=null);
val2= $('sel_id_2').value;
if( $('sel_id_3')!=null);
val3= $('sel_id_3').value;
if( val1!='0' && val2!='0' && val3!='0' )
window.alert("sel1=val1&sel2=val2&sel3=val3");
}
</script>
</pre>
<script type="text/javascript">
Event.observe(window, 'load', initSearch, false);
function initSearch() {
Event.observe('sel_id_3', 'change', dosearch, false);
}
function dosearch(){
var val1, val2, val3;
val1='';
val2='';
val3='';
if( $('sel_id_1')!=null);
val1= $('sel_id_1').value;
if( $('sel_id_2')!=null);
val2= $('sel_id_2').value;
if( $('sel_id_3')!=null);
val3= $('sel_id_3').value;
if( val1!='0' && val2!='0' && val3!='0' )
window.alert("sel1=val1&sel2=val2&sel3=val3");
}
</script>
</body>
</html>
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