我尝试使用jquery Mobile设置选择/选项值，似乎无法使其工作。
<!-- Complete example below. -->
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="jquery.mobile/jquery.mobile.css" />
<script type="text/javascript" src="jquery.mobile/jquery.js"></script>
<script type="text/javascript" src="jquery.mobile/jquery.mobile.js"></script>
</head>
<body>
<div data-role="page" id="mainmenu">
<div data-role="header" data-position="inline">
<h1>Main Menu</h1>
</div>
<div class="ui-body ui-body-c">
<div data-role="content">
<div id='placeholderA' ></div>
<div id='placeholderB' ></div>
<div class="ui-block-b"><button type="submit" id="addPart" data-theme="a" data-icon="plus">Add Serial/Part</button></div>
</div>
</body>
</html>
<script>
var currentTab = "A";
// An XML fragment
testXML = "<?xml version='1.0' encoding='UTF-8' ?>\
<Doc>\
<DtlFields>\
<ACTC>B</ACTC>\
<QTY>5</QTY>\
</DtlFields>\
<DtlFields>\
<ACTC>A</ACTC>\
<QTY>6</QTY>\
</DtlFields>\
</Doc>";
// An HTML fragment
section = "<ul data-role='listview' data-theme='a'>\
<li>PART: <span class='thisSection'></span>\
<div data-role='fieldcontain'>\
<label>A Label</label>\
<select name='ACTC' id='preAction' data-theme='a'>\
<option value='A'>A</option>\
<option value='B'>B</option>\
<option value='C'>C</option>\
</select>\
</div>\
</li>\
</ul>\
<!-- *** Quantity *** -->\
<div data-role='fieldcontain'>\
<label>QTY</label>\
<input type='range' name='QTY' id='preQuant01' value='1' min='1' max='10'/>\
</div>\
</div>";
$(document).ready(function () {
/* Add a listeners to ADD PART */
$('#addPart').click(function() {
var xml = $($.parseXML(testXML));
xml.find("DtlFields").each(function () {
var XMLString= $(this);
fnAddPart(XMLString);
});
return false;
});
// add a part section to a Group on screen
function fnAddPart(XMLString){
myTmpl = $(section);
if (XMLString != "" ){
// set Quantity - this works
var x =((XMLString).find("QTY").text());
myTmpl.find("input[name='QTY']").attr('value',x);
// ************ set Activity - but this does not work! ***************
var x =((XMLString).find("ACTC").text());
myTmpl.find("input[name='ACTC']").attr('value',x);
}
// append to page
myTmpl.appendTo("#placeholder"+currentTab).page();
}
});
</script>
解决方法
当在jQuery Mobile中以编程方式操作诸如选择字段的元素时，一旦进行了相关选择，您需要刷新元素，以便更新用户界面。这是一个在select字段中设置值的示例代码段，然后更新它：
// Grab a select field
var el = $('#YOUR_SELECT_FIELD');
// Select the relevant option,de-select any others
el.val('some value').attr('selected',true).siblings('option').removeAttr('selected');
// jQM refresh
el.selectmenu("refresh",true);
所以这是我怀疑你需要的最后一行。
