Question

2

How to validate a multiselect Dropdown?

rated 0 times [ 3] [ 1] / answers: 1 / hits: 21881 / 12 Years ago, sat, december 15, 2012, 12:00:00

So the situation is this: I'm creating a dropdown box using the jquery.multiselect plugin on a form, but I need to check if there's some value selected, if there isn't one or more values selected I wanna throw a alert or something when some one tries to submit the form.

The HTML Code

<form id=RNA name=RNA>

<select size=5 name=sampleMut[] multiple=multiple id=sampleMut>



 <option value=41 >41</option>

  <option value=48 >48</option>

  <option value=65 >65</option>

  <option value=102 >102</option>



</select>

</form>

The JavaScript Code

$(function(){

 $(#sampleMut).multiselect(); 

});

jQuery version 1.8.3

jquery.multiselect 1.13

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

harleedayanarar

Add To Favorites

Follow

Total Points: 303

Total Questions: 90

Total Answers: 102

Location: Virgin Islands (U.S.)

Member since Tue, Jul 7, 2020

4 Years ago

answered 12 Years ago janayr · Accepted Answer

Try this:

$(function(){

    $('form').submit(function(){

         var options = $('#sampleMut > option:selected');

         if(options.length == 0){

             alert('no value selected');

             return false;

         }

    });

});

Fiddle: http://jsfiddle.net/aDxu8/1/