Simulate javascript to choose from dropdown

Question

I am trying to simulate a javascript to choose from the dropdown list below. I am trying this code here but its not working.

$('select[name="srctype"]').val(2).trigger('change');

Am i doing something wrong here? Is my javascript messed up for this layout of code below?

I am trying to choose value="single"

<select name="srctype" class="formselect" onchange="typesel_change()">
    <option value="any" selected="selected">any</option>
    <option value="single">Single host or alias</option>
    <option value="network">Network</option>
    <option value="pptp">PPTP clients</option>
    <option value="pppoe">PPPoE clients</option>
    <option value="l2tp">L2TP clients</option>
    <option value="wan">WAN subnet</option>
    <option value="wanip">WAN address</option>
    <option value="lan">LAN subnet</option>
    <option value="lanip">LAN address</option>
</select>

Leniel Maccaferri · Accepted Answer · 2013-09-06 19:29:35Z

5

Do this:

$('.formselect').val('single').trigger('change');

In your code you're trying to set a val 2 that doesn't exist. The value you're interested is actually single as you mention in your question.

Here's a demo: http://jsbin.com/eXONuhu/1/

edited Sep 6, 2013 at 19:29

answered Sep 6, 2013 at 19:16

Leniel Maccaferri

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1 Comment

soniccool Over a year ago

So i tried your script replacing formselect with srctype and i get this error TypeError: Cannot call method 'val' of null

Atif · Accepted Answer · 2013-09-06 19:31:23Z

1

Try:

$('select[name="srctype"]').val('single')

or

$('select[name="srctype"] option:eq(1)').prop('selected',1)

As you noted in your comment, this worked for you:

(function ($) {
    $('select[name="srctype"]').val('single');
}).call(this, jQuery);

edited Sep 6, 2013 at 19:31

Atif

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answered Sep 6, 2013 at 19:15

j08691

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13 Comments

soniccool Over a year ago

Ah i got an error sayingg TypeError: Cannot call method 'val' of null

j08691 Over a year ago

You're using jQuery syntax so you need to include the jQuery library. Are you?

soniccool Over a year ago

Well this is on a website im just trying to make an auto script its already loaded.

j08691 Over a year ago

Well, my solution works as you can see from the jsFiddle link I posted. You'll need to figure out if you're loading jQuery.

soniccool Over a year ago

Yes it worked! (function ($) { $('select[name="srctype"]').val('single'); }).call(this, jQuery); worked perfectly.

|

Atif · Accepted Answer · 2013-09-06 19:18:27Z

0

var myVal = $('select[name="srctype"] option:eq(1)').attr('value');
$('select[name="srctype"]').val(myVal).trigger('change');

Or an optimized version

var mySelect = $('select[name="srctype"]');
var myVal = $('option:eq(1)', mySelect).attr('value');
mySelect.val(myVal).trigger('change');

Fiddle - http://jsfiddle.net/P6Ayz/1/

answered Sep 6, 2013 at 19:18

Atif

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