我再次遇到范围界定问题（我猜）。我想编写一个尽可能通用的函数来检索页面并在将其内容设置为占位符（<DIV>）之前删除它的一些代码
下面是加载页面的示例代码：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>testtesttest</title>
</head>
<script type="text/javascript" src="/AJAX/jquery-1.6.4.min.js"></script>
<script type='text/javascript' src='/util.js'></script>
<body>
<div class='contentcontainer'>
<hr>
<div class='contentitem' id='restart' style="margin-top: 100px; margin-left: 100px; margin-bottom: 100px; display:block;">
<table>
<tr>
<td><img src='/images/warn__xl.gif'></td>
<td><p style="font-size: 1.2em; font-weight: bold; color:#02A3C1;">Loading: please wait...</p></td>
</tr>
</table>
</div>
<div class='contentitem' id='ready' style="margin-top: 100px; margin-left: 100px; margin-bottom: 100px; display:none;">
<div id="content">
</div>
</FORM>
</div>
</div>
<script type='text/javascript'>
var content = $("#content");
//var content = $("#ready");
//hide loading bar
function hideLoading(){
loading.fadeTo(1000, 0);
};
$(document).ready(function(){
content.load('/AJAX/test/cfg_3.html div .contentitem', function(content) {
//$(this).find('table:not(:first-child)').css("font-style", "italic"); //just need to replace the css by remove() to remove what is italic.
$(this).find('table:eq(2)').css("font-style", "italic"); //just need to replace the css by remove() to remove what is italic.
/*$(this).find('table:contains("Content Based"):first-child').each(function(i){
//.css("display", "none");
// tabelle[i] = $(this).attr("onChange");
//$(this).attr("id",i)
alert(i);
});*/
$(this).find('tbody').each(function(){
//$("tr").children("td").find('table:contains("Content Based"):first-child').each(function() {$(this).css("font-style", "normal");});
$("tr").children("td").find('table:contains("Content Based")').each(function() {$(this).css("background-color", "yellow");});
//$("tr").children("td").find('table:contains("Content Based"):first-child').each(function() {$(this).remove();});
});
document.getElementById("restart").style.display = "none";
document.getElementById("ready").style.display = "block";
//alert('Load was performed.');
});
});
//intelligent version of submitform: will only refresh what was needed:
(function() {
//
var proxied = submitForm;
submitForm = function(theForm, actionNo, flags, primkey, confirmMsg, anchor, eval_code, customP) {
//potential issue with the switch language... I think actionNo = 0 means reload.
//alert('gotcha');
// Function submit a form
$.ajax({
//type: theForm.attr('method'),
//type: get,
//url: theForm.attr('action'),
//content.load('/AJAX/test/cfg_3.html div .contentitem', function(content) {
url: "/AJAX/test/cfg_3.html",
//data: theForm.serialize(),
success: function (data) {
alert('ok');
var dataHTML = $(data).html().filter("div .contentitem");
$(dataHTML).find('table:eq(2)').css("font-style", "bold"); //just need to replace the css by remove() to remove what is italic.
content.html(dataHTML);
}
});
}
return false;
})();
</script>
</body>
</html>
以及加载页面的摘录：
<HTML>
<HEADER>
<script type='text/javascript' src='/util.js'></script>
</HEADER>
<BODY>
<div class='contentcontainer'>
<hr>
<div class='contentitem'>
<table cellspacing='0' cellpadding='0'>
<tr>
<td class='icon' valign='top' width='100px'><img src='/images/webf__xl.gif' alt='Parental Control'></td>
<td class='data' valign='top'>
<table cellspacing='0' cellpadding='0'>
<tr>
<td align='left'><span class='itemtitle'>Parental Control</span></td>
<td align='right'></td>
</tr>
<tr>
<td colspan='2'>
<p>This page summarizes the configuration of your Thomson Gateway regarding web site filtering. </p>
<form name='SiteFilterCfg' action='/cgi/b/sfltr/cfg/' method='post'>
<br>
<table cellspacing='0' cellpadding='0' width='100%'>
<tr>
<td width='40' valign='top'><img src='/images/bull__md.gif' alt=''></td>
<td valign='top'>
<span class='blocktitle'>Title</span><br>
<table width='100%' class='datatable' cellspacing='0' cellpadding='0'>
<tr>
<td></td>
<td width='30px'></td>
<td width='220px'></td>
<td width='50px'></td>
</tr>
<tr>
<td height='7' colspan='4'><img src='/images/spacer.gif' width='1' height='7' border='0' alt=''></td>
</tr>
<tr>
<td width='170'>Use Address Based Filter:</td>
<td colspan='3'><input type='checkbox' name='30' value='1' ></td>
</tr>
<tr>
<td height='7' colspan='4'><img src='/images/spacer.gif' width='1' height='7' border='0' alt=''></td>
</tr>
<tr>
<td width='170'>Action:</td>
<td colspan='3'>
<select name='31' style='width: 270px'>
<option value='0' >Block</option>
<option value='1' selected>Allow</option>
</select>
</td>
</tr>
<tr>
<td height='7' colspan='4'><img src='/images/spacer.gif' width='1' height='7' border='0' alt=''></td>
</tr>
<tr>
<td colspan='4' align='right'>
<input type='button' name='25' value='Apply' onClick='submitForm(document.SiteFilterCfg,25,0,"","",0,"")' >
<input type='button' name='26' value='Cancel' onClick='submitForm(document.SiteFilterCfg,26,0,"","",0,"")' >
</td>
</tr>
</table>
<p>Some text. </p>
<table class='edittable' width='100%' cellspacing='0' cellpadding='0' border='0'>
<tr>
<td colspan='5' class='black'><img src='/images/spacer.gif' border='0' width='1' height='1' alt=''><br></td>
</tr>
<tr>
<td colspan='5'><img src='/images/spacer.gif' border='0' width='1' height='3' alt=''><br></td>
</tr>
<tr>
<th align='left'>Web Site</th>
<th align='left'>Action</th>
<th align='left'>Redirect</th>
<th colspan='2'></th>
</tr>
<tr>
<td colspan='5'><img src='/images/spacer.gif' border='0' width='1' height='3' alt=''><br></td>
</tr>
<tr>
<td colspan='5' class='black'><img src='/images/spacer.gif' border='0' width='1' height='1' alt=''><br></td>
</tr>
<tr>
<td class='evenrow' colspan='5'><img src='/images/spacer.gif' border='0' width='1' height='10' alt=''><br></td>
</tr>
<tr>
<td class='evenrow' colspan='5' align='center'><i>No filter rules defined.</i></td>
</tr>
<tr>
<td class='evenrow' colspan='5'><img src='/images/spacer.gif' border='0' width='1' height='10' alt=''><br></td>
</tr>
<tr>
<td colspan='5' class='black'><img src='/images/spacer.gif' border='0' width='1' height='1' alt=''><br></td>
</tr>
<tr>
<td class='oddrow' colspan='5'><img src='/images/spacer.gif' border='0' width='1' height='3' alt=''><br></td>
</tr>
<tr>
<td class='oddrow'><input type='text' name='32' maxlength='80' onkeypress='return noenter(event)' style='width: 60 '></td>
<td class='oddrow'>
<select name='33' style='width: 60 '>
<option value='0' selected>Block</option>
<option value='1' >Allow</option>
<option value='2' >Redirect</option>
</select>
</td>
<td class='oddrow'><input type='text' name='34' maxlength='80' onkeypress='return noenter(event)' style='width: 60 '></td>
<td class='oddrow' colspan='2' align='right' valign='middle'><input type='button' name='19' value='Add' onClick='submitForm(document.SiteFilterCfg,19,1,"","",0,"")' ></td>
</tr>
<tr>
<td class='oddrow' colspan='5'><img src='/images/spacer.gif' border='0' width='1' height='3' alt=''><br></td>
</tr>
<tr>
<td colspan='5' class='black'><img src='/images/spacer.gif' border='0' width='1' height='1' alt=''><br></td>
</tr>
</table>
</td>
</tr>
</table>
</form>
<br>
<table cellspacing='0' cellpadding='0' width='100%'>
<tr>
<td width='40' valign='top'><img src='/images/bull__md.gif' alt=''></td>
<td valign='top'>
<span class='blocktitle'>Content Based Filtering</span><br>
<form name='ContentFilterCfg' action='/cgi/b/sfltr/content/cfg/' method='post'>
<table width='100%' class='datatable' cellspacing='0' cellpadding='0'>
<tr>
<td></td>
<td width='30px'></td>
<td width='220px'></td>
<td width='50px'></td>
</tr>
<tr>
<td height='7' colspan='4'><img src='/images/spacer.gif' width='1' height='7' border='0' alt=''></td>
</tr>
<tr>
<td width='170'>License Type:</td>
<td colspan='3'>None</td>
</tr>
<tr>
<td height='7' colspan='4'><img src='/images/spacer.gif' width='1' height='7' border='0' alt=''></td>
</tr>
<tr>
<td width='170'>License Expiration:</td>
<td colspan='3'>Unknown (server not yet contacted)</td>
</tr>
<tr>
<td height='7' colspan='4'><img src='/images/spacer.gif' width='1' height='7' border='0' alt=''></td>
</tr>
<tr>
<td width='170'>Use Content Based Filter:</td>
<td colspan='3'><input type='checkbox' name='30' value='1' ></td>
</tr>
<tr>
<td height='7' colspan='4'><img src='/images/spacer.gif' width='1' height='7' border='0' alt=''></td>
</tr>
<tr>
<td width='170'>Action for uncategorised sites:</td>
<td colspan='3'>
<select name='31' style='width: 270px'>
<option value='0' selected>Block</option>
<option value='1' >Allow</option>
</select>
</td>
</tr>
<tr>
<td height='7' colspan='4'><img src='/images/spacer.gif' width='1' height='7' border='0' alt=''></td>
</tr>
<tr>
<td></td>
<td></td>
<td valign='bottom' colspan='2'>Block all categorized websites</td>
</tr>
</table>
</form>
<tr>
<td height='7' colspan='4'><img src='/images/spacer.gif' width='1' height='7' border='0' alt=''></td>
</tr>
<tr>
<td colspan='4' align='right'>
<input type='button' name='10' value='Apply' onClick='submitForm(document.ContentFilterCfg,10,0,"","",0,"")' >
<input type='button' name='11' value='Cancel' onClick='submitForm(document.ContentFilterCfg,11,0,"","",0,"")' >
</td>
</tr>
</td></tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</div>
</div>
</BODY>
</HTML>
我想在<span class='blocktitle'>Content Based Filtering</span>. 在函数中，我没有做remove()，而是将其涂成黄色。似乎整个页面都是黄色的......我的感觉是“this”不在正确的范围内。
知道如何获得最内层的表和那个表，而不是在所有包含的表上匹配吗？
编辑：
感谢 Clav，我在文档准备功能中找到了一种方法。现在，我正在尝试使“submitForm”更聪明，并刷新 div 而不是重新加载页面。
我以为我只需要复制粘贴代码即可使其工作，但它并没有直接工作......
下面是一些在文档中工作的代码的摘录：
$(document).ready(function(){
content.load('/AJAX/test/cfg_3.html div .contentitem', function(content) {
$(this).find('tbody').each(function(){
$("span:contains('Content Based Filtering')").parent("td < tr < tbody < table").css("background-color", "yellow");
});
document.getElementById("restart").style.display = "none";
document.getElementById("ready").style.display = "block";
});
});
但是如果我在提交表单中做同样的事情（我使用 Ajax 提交）：
(function() {
//
var proxied = submitForm;
submitForm = function(theForm, actionNo, flags, primkey, confirmMsg, anchor, eval_code, customP) {
$.ajax({
url: "/AJAX/test/cfg_3.html",
// for test I do a get
datatype: "html"
})
.done(function (html) {
$(html).find('td').each(function(){
$("span:contains('Content Based Filtering')").parent("td").parent("tr").parent("tbody").parent("table").css("background-color", "yellow");
});
content.html(html);
})
.fail(function (html) {
window.location.reload();
});
}
return false;
})();
它不起作用。
我的理解是因为cfg3.html的源代码不包含<tbody>标签。所以我在占位符中更改并加载了 html，然后对其进行了修改（我放弃了尝试另一个层次结构，因为它失败了）：
(function() {
//
var proxied = submitForm;
submitForm = function(theForm, actionNo, flags, primkey, confirmMsg, anchor, eval_code, customP) {
$.ajax({
url: "/AJAX/test/cfg_3.html",
// for test I do a get
datatype: "html"
})
.done(function (html) {
content.html(html);
content.find('tbody').each(function(){
$("span:contains('Content Based Filtering')").parent("td").parent("tr").parent("tbody").parent("table").css("background-color", "yellow");
});
})
.fail(function (html) {
window.location.reload();
});
}
return false;
})();
我的问题是这在 Firefox 中有效，但在 IE 中无效……我不明白为什么，因为基本上我在 submitForm 中的操作与在document.ready.
任何想法？