自动将 jQuery UI 对话框调整为 ajax 加载的内容的宽度

I've just wrote a tiny sample app using JQuery 1.4.1 and UI 1.8rc1. All I did was specify the constructor as:

var theDialog = $(".mydialog").dialog({
        autoOpen: false,
        resizable: false,
        modal: true,
        width:'auto'
});

我知道你说过这会占据浏览器窗口的100%宽度，但在FF3.6、Chrome和IE8上测试过后，这里的效果很好.

I'm not making AJAX calls, just manually changing the HTML of the dialog but don't think that will cause any probs. Could some other css setting be knocking this out?

The only problem with this is that it makes the width off-centre but I found this support ticket where they supply a workaround of placing the dialog('open') statement in a setTimeout to fix the problem.

Here is the contents of my head tag:

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js"></script>
<script type="text/javascript" src="jquery-ui.min.js"></script>
<link href="jquery-ui.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
    $(function(){
        var theDialog = $(".mydialog").dialog({
            autoOpen: false,
            resizable: false,
            modal: true,
            width: 'auto'
        });

        $('#one').click(function(){
            theDialog.html('some random text').dialog('open');
        });

        $('#two').click(function(){
            theDialog.html('<ul><li>Apple</li><li>Orange</li><li>Banana</li><li>Strawberry</li><li>long text string to see if width changes</li></ul>').dialog('open');
        });

        $('#three').click(function(){
            //this is only call where off-centre is noticeable so use setTimeout
            theDialog.html('<img src="./random.gif" width="500px" height="500px" />');
            setTimeout(function(){ theDialog.dialog('open') }, 100);;
        });
     });
</script>

I downloaded the js and css for Jquery UI from http://jquery-ui.googlecode.com/files/jquery-ui-1.8rc1.zip. and the body:

<div class='mydialog'></div>
<a href='#' id='one'>test1</a>
<a href='#' id='two'>test2</a>
<a href='#' id='three'>test3</a>