Jquery选择带斜杠的属性

Question

我正在尝试通过属性值选择JQuery过滤对象,该属性是唯一的文件名.当使用var创建选择器时,我无法从斜杠中逃脱.我尝试了多种组合我失去了2个小时,但我想我错过了一些东西.提前感谢光

我的HTML:

<table class="table table-condensed" id="CLKPMTable_2"><tbody><tr class="click-row" valuetype="PM" filename="\\server\folder\file1" paymentmethodid="1"><td class="col-md-1"><img width="24" height="24" src="/Content/img/123.png" id="PMURLIMG_"></td><td class="col-md-10" id="PM_FILENAME_">BO OCT</td><td class="col-md-1 text-right"><img width="16" height="16" src="/Content/img/notyet.png" id="PM_STATUS_"></td></tr><tr class="click-row" valuetype="PM" filename="\\server\folder\file2" paymentmethodid="2"><td class="col-md-1"><img width="24" height="24" src="/Content/img/visa.png" id="PMURLIMG_"></td><td class="col-md-10" id="PM_FILENAME_">O SEP</td><td class="col-md-1 text-right"><img width="16" height="16" src="/Content/img/notyet.png" id="PM_STATUS_"></td></tr></tbody></table>

我的Javascript:

var filename = "\\server\folder\file1";
var selec = $('tr[valueType="PM"][filename="'+filename+'"]');
alert(selec.attr("paymentmethodid"));

不适用于:

var filenamescaped = filename.replace('\\','\\\\')
var selec = $('tr[valueType="PM"][filename="'+filenamescaped+'"]');

也没有用(来自:Jquery官方doc来逃避css中使用的字符):

function jq( myid ) {
 return myid.replace( /(:|\.|\[|\]|,|=)/g, "\\$1" );
}

 var filename = "\\server\folder\file1";
  var filenamescaped = jq(filename);

我的小提琴手做了一些测试: jsfiddler

Answer 1

在这种情况下，该值的反斜杠需要加倍两次才能作为有效的选择器

var filename = "\\\\\\\\server\\\\folder\\\\file1";
var selec = document.querySelector('tr[valueType="PM"][filename="'+filename+'"]');
alert(selec.getAttribute("paymentmethodid"));

<table class="table table-condensed" id="CLKPMTable_2"><tbody><tr class="click-row" valuetype="PM" filename="\\server\folder\file1" paymentmethodid="1"><td class="col-md-1"><img width="24" height="24" src="/Content/img/123.png" id="PMURLIMG_"></td><td class="col-md-10" id="PM_FILENAME_">BO OCT</td><td class="col-md-1 text-right"><img width="16" height="16" src="/Content/img/notyet.png" id="PM_STATUS_"></td></tr><tr class="click-row" valuetype="PM" filename="\\server\folder\file2" paymentmethodid="2"><td class="col-md-1"><img width="24" height="24" src="/Content/img/visa.png" id="PMURLIMG_"></td><td class="col-md-10" id="PM_FILENAME_">O SEP</td><td class="col-md-1 text-right"><img width="16" height="16" src="/Content/img/notyet.png" id="PM_STATUS_"></td></tr></tbody></table>

更新

在您的特定情况下，该filename值需要已经转义才能使替换起作用，如下所示var filename="\\\\server\\folder\\file1"

请注意替换命令中的全局开关，以便它替换所有出现的情况

var filename = "\\\\server\\folder\\file1";
var filenamescaped = filename.replace(/\\/g,'\\\\\\\\');
var selec = $('tr[valueType="PM"][filename="'+filenamescaped+'"]');
alert(selec.attr("paymentmethodid"));

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table class="table table-condensed" id="CLKPMTable_2"><tbody><tr class="click-row" valuetype="PM" filename="\\\\server\\folder\\file1" paymentmethodid="1"><td class="col-md-1"><img width="24" height="24" src="/Content/img/123.png" id="PMURLIMG_"></td><td class="col-md-10" id="PM_FILENAME_">BO OCT</td><td class="col-md-1 text-right"><img width="16" height="16" src="/Content/img/notyet.png" id="PM_STATUS_"></td></tr><tr class="click-row" valuetype="PM" filename="\\server\folder\file2" paymentmethodid="2"><td class="col-md-1"><img width="24" height="24" src="/Content/img/visa.png" id="PMURLIMG_"></td><td class="col-md-10" id="PM_FILENAME_">O SEP</td><td class="col-md-1 text-right"><img width="16" height="16" src="/Content/img/notyet.png" id="PM_STATUS_"></td></tr></tbody></table>