AJAX

I cann't unable to get count the selected list box items using javascript

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Join Date: Dec 2007

Posts: 9

Reputation: palcham is an unknown quantity at this point

Solved Threads: 0

palcham

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I cann't unable to get count the selected list box items using javascript

Jan 2nd, 2008

Hi

I cann't unable to get count the selected list box items using javascript so you please help me.
if you know means please send to me

Advance thanks

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Join Date: Nov 2007

Posts: 3

Reputation: AOlevel1 is an unknown quantity at this point

Solved Threads: 1

AOlevel1

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Newbie Poster

Re: I cann't unable to get count the selected list box items using javascript

Jan 2nd, 2008

I think you are looking for one of these:

document.getElementById('SelectId').options.length;

OR

document.getElementById('SelectId').selectedIndex;

Last edited by AOlevel1; Jan 2nd, 2008 at 11:12 am.

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Join Date: Jun 2006

Posts: 7,648

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~s.o.s~

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Failure as a human

Re: I cann't unable to get count the selected list box items using javascript

Jan 2nd, 2008

Try something like:

 Help with Code Tags 
 javascript Syntax (Toggle Plain Text) 
/**
 * Alerts out the selected item values of a select box
 *
 * @author sos
 * @param {HTMLFormElement} frm The reference to the form element
 * @param {String} name The name of the select box
 */
function show(frm, name) {
  var selOpts = frm.elements[name].options;
  for(var i = 0, max = selOpts.length; i < max; ++i) {
    if(selOpts[i].selected) {
      alert("Selected Item: " + selOpts[i].value);
    }
  }
}
/**
 * Alerts out the selected item values of a select box
 *
 * @author sos
 * @param {HTMLFormElement} frm The reference to the form element
 * @param {String} name The name of the select box
 */
function show(frm, name) {
  var selOpts = frm.elements[name].options;
  for(var i = 0, max = selOpts.length; i < max; ++i) {
    if(selOpts[i].selected) {
      alert("Selected Item: " + selOpts[i].value);
    }
  }
}

Last edited by ~s.o.s~; Jan 2nd, 2008 at 11:30 am.

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