RE: [ cf-dev ] JS : Get Selected Options

[Kevin Faulkner]

That'll only validate after submission; if you move exactly the same logic
to an onChange on the select box; you can do real-time validate, and
actually not allow more than required. If that's what you want of course!


-----Original Message-----
From: Rich Wild [mailto:[EMAIL PROTECTED]
Sent: 15 July 2003 13:10
To: '[EMAIL PROTECTED]'
Subject: RE: [ cf-dev ] JS : Get Selected Options


<form name="myForm" onsubmit="countSels();return false;">
<select name="mySelectBox" size="5" multiple>
<option value=1>a</option>
<option value=2>b</option>
<option value=3>c</option>
<option value=4>d</option>
<option value=5>e</option>
</select>
<input type="submit">
</form>

<script>
        function countSels() {
                var selCount = 0;
                with (document.myForm) {
                        for (var i=0;i < mySelectBox.options.length;i++) {
                                if (mySelectBox.options[i].selected) {
                                        selCount++;
                                }
                        }
                }
                alert('Number of Options Selected: ' + selCount);
        }
</script>

> -----Original Message-----
> From: Robertson-Ravo, Neil (RX)
> [mailto:[EMAIL PROTECTED]
> Sent: 15 July 2003 12:58
> To: '[EMAIL PROTECTED]'
> Subject: [ cf-dev ] JS : Get Selected Options
> 
> 
> I can't remember this at all....on a multi-select box, I need 
> to limit the
> amount of options checked  - well all I want to do is check 
> them on a button
> click.
> 
> How do you get the count of whats selected in a multi-select 
> box (where the
> user has used ctrl-click to get the count)?
> 
> uurgh
> 
> 
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