我再次遇到范围问题（我猜）。我想编写一个尽可能通用的函数来检索页面并删除它的一些代码，然后再将其内容设置为占位符（<DIV>）
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>
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>之后删除“第二个”表格。在函数中我没有做remove()而是用黄色着色。看来整个页面都是黄色的......
我的感觉是“这个”不在合适的范围内。
我知道如何获得最内层的表，只有那个，不匹配所有包含的表吗？
编辑：
感谢Clav，我在文档就绪功能中找到了一种方法。现在，我正在尝试使“submitForm”更加聪明，并刷新div而不是重新加载页面。
我认为我只需要复制粘贴代码以使其正常工作，但它不能直接使用...
这里有一些在文档准备好的代码摘录：
$(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submitform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;
})();
不起作用。
我的理解是因为cfg3.html的源代码不包含<tbody>标记。所以我更改并在占位符中加载了html然后修改了它（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;
})();
我的问题是这适用于Firefox，但不适用于IE ...我不明白为什么，因为基本上我在submitForm中做的和我在document.ready中做的一样。
有什么想法吗？
答案 0 :(得分：0)
将表格单元格变为黄色的代码循环遍历文档上的所有表格主体，并且该循环中的行选择器不限定任何特定的表格，
实际上，对于页面上的每个表，您都会迭代文档中的每个表行。如果我正确理解您，并且您希望在包含“基于内容的过滤”文本的table之后的datatable中获得form类span的{{1}}应该能够做到这一点：
$("span:contains('Content Based Filtering')").next("form").children("table.datatable").css("background-color", "yellow");