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我正在使用jQuery Mobile 1.1.1并使用Dialogs。我使用对话框来选择要添加到<ul>
的元素。我搜索了搜索类似的问题,但迄今为止没有运气。Button onClick事件在jQuery Mobile对话框中触发了太多次
要将多个元素添加到<ul>
我需要多次打开我的对话框,并且我试图避免每次打开时都需要重新创建对话框。我的问题是,我的OkButtonPopup
按钮的onClick
事件触发次数过多(第一次触发一次,第二次触发两次,第三次触发三次,等等......)。
我不明白为什么会这样......
下面是(简化)代码,让我的麻烦。
<!doctype html>
<html>
<head>
<title>Problem with Dialog re-use</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.1.1/jquery.mobile-1.1.1.min.css" />
<script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>
<script src="http://code.jquery.com/mobile/1.1.1/jquery.mobile-1.1.1.min.js"></script>
</head>
<body>
<div data-role="page">
<div data-role="header">
<h1>Problem with Dialog re-use</h1>
</div>
<div data-role="content">
<p><h2>Activated by</h2></p>
<ul id="activate_ul">
<!-- li to be added dynamically-->
</ul>
<a href="javascript:addPopup()" data-rel="popup" data-role="button">Add</a>
</div>
</div>
<div id="myDialog" data-role="dialog">
<div data-role="header" data-theme="d">
<h1>My Elements</h1>
</div>
<div id="myDialogContent" data-role="content" data-theme="c">
<p>Element Type</p>
<select id="element-type">
<!-- options to be added dynamically-->
</select>
<p>Element Name</p>
<select id="element-list">
<!-- options to be added dynamically-->
</select>
<a href="#" id="OkButtonPopup" data-role="button" data-rel="back" data-theme="b">Ok</a>
</div>
</div>
<script type="text/javascript">
var all_inputs = ["myInput1","myInput2","myInput3","myInput4"];
var all_outputs = ["myOutput1","myOutput2","myOutput3","myOutput4"];
var all_zones = ["myZone1","myZone2","myZone3","myZone4"];
function updateInputList() {
$('#element-list').empty();
for (var i = 0; i < all_inputs.length; i++) {
$('#element-list').append('<option value="'+all_inputs[i]+'">'+all_inputs[i]+'</option>');
}
}
function updateOutputList() {
$('#element-list').empty();
for (var i = 0; i < all_outputs.length; i++) {
$('#element-list').append('<option value="'+all_outputs[i]+'">'+all_outputs[i]+'</option>');
}
}
function updateZoneList() {
$('#element-list').empty();
for (var i = 0; i < all_zones.length; i++) {
$('#element-list').append('<option value="'+all_zones[i]+'">'+all_zones[i]+'</option>');
}
}
function removeByValue(arr, val) {
for(var i=0; i<arr.length; i++) {
if(arr[i] == val) {
arr.splice(i, 1);
break;
}
}
}
function addPopup() {
$('#element-type').empty();
$('#element-type').append('<option value="Input">Input</option>')
.append('<option value="Output">Ouput</option>')
.append('<option value="Zone">Zone</option>');
updateInputList();
$('#element-type').change();
$('#element-type').on("change", function() {
if ($("option:selected", this).attr('value') == "Input") {
updateInputList();
}
if ($("option:selected", this).attr('value') == "Output") {
updateOutputList();
}
if ($("option:selected", this).attr('value') == "Zone") {
updateZoneList();
}
$('#element-list').selectmenu('refresh');
});
// Event triggered too many times!! Why???
$('#OkButtonPopup').on("click", function() {
$('#activate_ul').append('<li>' + $('#element-list').val() +'</li>');
// remove element from corresponding array
if ($('#element-type').val() == 'Input') {
removeByValue(all_inputs, $('#element-list').val());
}
if ($('#element-type').val() == 'Output') {
removeByValue(all_outputs, $('#element-list').val());
}
if ($('#element-type').val() == 'Zone') {
removeByValue(all_zones, $('#element-list').val());
}
});
$.mobile.changePage("#myDialog", { role: "dialog" });
}
</script>
</body>
</html>
任何帮助,将不胜感激:)
这很棒,两种解决方案都能正常工作。谢谢! – AntonyG 2012-07-26 16:40:56
真的有帮助...谢谢 – 2012-12-07 11:58:27