How to select more than one option in multiple selection list using jquery?

In my web application a method returns a list of array contains ID's of select options which should have to be selected. Its is hard to make them all selected using DOM methods.

Is there 开发者_开发百科any way to do it using jQuery.

Any suggestions would be more appreciative...

Thanks in Advance!!!

Using jQuery, you can just call attr("selected", true) on the collection of elements. All you have to do is get the selector right:

$('#opt1, #opt2, #opt3').attr("selected", true);

http://api.jquery.com/attr/

EDIT: Based on your comment below, your data looks the code below.

There's a problem. It is not valid for an HTML ID attribute to start with a number. IDs must begin with a letter.

I'll show you the solution anyway, but you should fix the IDs.

var array = [{respID:1, respName:null}, 
             {respID:2, respName:null}, 
             {respID:3, respName:null}, 
             {respID:4, respName:null}, 
             {respID:5, respName:null} 
             ];

$.each(array, function(i,val) { 
     $('#' + val.respID).attr("selected", "selected"); 
});

Now this will give you the value of respID in each iteration of the loop.

But again, HTML IDs can not start with a number. I'd suggest updating your HTML ID attributes to something like id_5 instead of 5.

<select>
    <option id="id_1" value="some value">some text</option>
    <option id="id_2" value="some value">some text</option>
    <option id="id_3" value="some value">some text</option>
    ...
</select>

Then you would do this:

$.each(array, function(i,val) { 
     $('#id_' + val.respID).attr("selected", "selected"); 
});

It's actually quite simple, all you need to do is add an attribute of selected to the elements you want.

$("#id1, #id2", "select").attr("selected", "selected");

You can filter them by value too

$("option[value=someText]", "select").attr("selected", "selected");

If ids is an array of IDs, the following code should work:

$.each(ids, function() { $("#" + this).attr("selected", true); });