[Javascript] Listbox
Dave Stoltz
dstoltz at shh.org
Tue Feb 3 13:57:46 CST 2004
ON the same topic, how do I select ALL the items in the select box with a
function? This is what I have so far, but doesn't seem to work:
<script>
function selectall(){
if (form1.mylist.options.length>0){
var howmany = form1.mylist.options.length;
for(count=1;count==howmany;count++)
form1.mylist.options[count].selected=true;
}
}
</script>
Thanks!
-----Original Message-----
From: javascript-bounces at LaTech.edu [mailto:javascript-bounces at LaTech.edu]
On Behalf Of Peter Brunone
Sent: Monday, February 02, 2004 4:50 PM
To: '[JavaScript List]'
Subject: RE: [Javascript] Listbox
var myListLength = myList.options.length;
If length is greater than zero, you have at least one item in the list.
-----Original Message-----
From: javascript-bounces at LaTech.edu On Behalf Of Dave Stoltz
If I have a listbox (not a dropdown) named "mylist", how can I test to see
if there are any values in the box? I need to test if it's empty or not.
Thanks!
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