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04.30.2004 at 08:46AM PDT, ID: 20973771
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8.0

Referring to an HTML listbox (multiple select) using JavaScript

Asked by kaiwhoeatspie in JavaScript

Tags: , , ,

I have an HTML listbox in an ASP page in which users can select one or more values, as follows:

<select class='cInput' name="listbox" size=5 multiple STYLE='width:300px;'>

On submit a JavaScript function on the same page is called that referrences that listbox as follows:

lcValue =document.forms[formNo].listbox.options[document.forms[formNo].listbox.selectedIndex].value;

formNo is passed into the function.

If I use "var lcValue = String(trim(Request.Form("listbox")));" in another ASP page using POST and more than one value has been highlighted in the box then lcValue automatically returns a list seperated by commas.

However the JavaScript code "document.forms[formNo].listbox.options[document.forms[formNo].listbox.selectedIndex].value" only returns the first selected item in the listbox.

How can I get lcValue to return a comma seperated list in JavaScript?

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[+][-]04.30.2004 at 09:22AM PDT, ID: 10961356

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[+][-]04.30.2004 at 09:28AM PDT, ID: 10961425

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About this solution

Zone: JavaScript
Tags: listbox, html, javascript, multiple
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Solution Provided By: Bustarooms
Participating Experts: 2
Solution Grade: A
 
 
[+][-]04.30.2004 at 09:37AM PDT, ID: 10961508

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