[jQuery] Re: scrollTop on jQuery object

[Arrviasto]

OK
the scrollHeight works, but what with scrollTop?

I want to make something like this:
obj.scrollTop = obj.scrollHeight;

I need scroll down this element on an event.

var i = 0;
while (json_arr[i].msg)  {
var json = json_arr[i];
var $msg = 
$('').addClass(opts.classes.msg).clone();
var $a = 
$('').addClass(opts.classes.author).clone
();
var $t = 
$('').addClass(opts.classes.time).clone
();
var $cont = 
$('').addClass(opts.classes.cont).clone
();

$a
.text( 
json.from )
.moTooltip({ 
initData : { id : opts.from }})
;
$t
.text( 
json.date );
$cont
.text( 
json.text );

$msg
.append($a)
.append($t)
.append($cont)

.appendTo($win.find('.'+opts.classes.msgsCont));
i++;
}

status('check',2);

$top = 
$win.c(opts.classes.handler);

if ( json_arr[0].from != 
opts.from ) $top.pulse(3,80);

var $msgs = 
$win.c(opts.classes.msgs);
var Dmsgs = $msgs[0]; // here 
is object to scroll
// and what there?

thx,
Arrviasto

[jQuery] Re: scrollTop on jQuery object

[Brandon Aaron]

There are two ways to get the DOM element out of the jQuery object.
Assuming $msgs from your code example, you could get the first message
as a DOM element like this:

var msg = $msgs.get(0);
// or
var msg = $msgs[0];
// then get scrollHeight
msg.scrollHeight

--
Brandon Aaron

On Mon, May 18, 2009 at 12:36 PM, Arrviasto  wrote:
>
> Hi!
> I have to use scrollTop and scrollHeight properties, but on jQuery
> object it returns `undefined`. Is there any method to get this
> property from jq object?
>
> It doesn't matter, but my object looks like this:
>
> var $win = $(this) // div on my page
> var $msgs = $win.find('.msgs');
>
>
> $msgs.scrollHeight returns 'undefined'
>
> Thanks,
> Arrviasto (Poland)
>