help-is-needed
asked on
using javascript to select multiple combobox options
Hi,
I would like to embed some js on a page that will prepopulate a combo box with two selected options.
How is this done in js?
I have it so that it does one...
populateTest();
function populateTest() {
var option1 = document.getElementById("t
option1 .value = '1';
}
I would like to embed some js on a page that will prepopulate a combo box with two selected options.
How is this done in js?
I have it so that it does one...
populateTest();
function populateTest() {
var option1 = document.getElementById("t
option1 .value = '1';
}
Eyal
do you have jQuery in that page?
ASKER
I can use Jquery yes.
ASKER
Im using a <select multiple="multiple"><optio
<select multiple="multiple"><optio
<select id='sel' multiple size='10'>
Check below code
Demo: http://jsfiddle.net/qFfG8/
Demo: http://jsfiddle.net/qFfG8/
<html>
<head>
<meta http-equiv="Content-Language" content="en-gb">
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Kiran Test</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js" type="text/javascript"></script>
<script>
$(document).ready(function(){
populateTest();
});
function populateTest()
{
$("#testElement").html("<option value='1'>Option 1</option><option value='2'>Option 2</option>") ;
}
</script>
</head>
<body>
<select id="testElement" multiple="multiple"></select>
</body>
</html>
maybe this will point you to the right solution
http://www.chromaticsites.com/blog/jquery-tutorial-selecting-multiple-select-form-elements-on-the-fly/
http://www.chromaticsites.com/blog/jquery-tutorial-selecting-multiple-select-form-elements-on-the-fly/
ASKER
Erm, I think I may not have got my issue across clearly.
I have an option list on my html page. example:
<select multiple="multiple" size="5" id="testOptions">
<option selected="selected" value="">please select</option>
<option value="test1">help</option
<option value="test2">is</option>
<option value="test3">needed</opti
<option value="test4">please</opti
<option value="test5">thanks</opti
</select>
What I would like to do is to pre-select two of the options when the page loads.
I currently have it working so that it can default select one of the options but I need to be able to default select two options.
populateTest();
function populateTest() {
var option1 = document.getElementById("t
option1.value = 'test2';
}
I have an option list on my html page. example:
<select multiple="multiple" size="5" id="testOptions">
<option selected="selected" value="">please select</option>
<option value="test1">help</option
<option value="test2">is</option>
<option value="test3">needed</opti
<option value="test4">please</opti
<option value="test5">thanks</opti
</select>
What I would like to do is to pre-select two of the options when the page loads.
I currently have it working so that it can default select one of the options but I need to be able to default select two options.
populateTest();
function populateTest() {
var option1 = document.getElementById("t
option1.value = 'test2';
}
ASKER CERTIFIED SOLUTION
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var maxSel = 5;
var selected =[];
window.onload=function() {
saveSel(document.getElementById('sel')); // initialise
}
function saveSel(sel) {
for (var i=0;i<sel.options.length-4;i++) {
sel.options[i].selected=true;
}
}
<select id='sel' multiple onChange="test(this)" size='10'>
<option value='1'>One</option>
<option value='2'>Two</option>
<option value='3'>Three</option>
<option value='4'>Four</option>
<option value='5'>Five</option>
<option value='5'>Six</option>
</select>ASKER
sonawanekiran, thats it.
How do I use that same code to deselect?
many thanks
How do I use that same code to deselect?
many thanks
SOLUTION
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