無法使用XPath讀取xml

我需要解析XMind包中的content.xml文件。
文件看起來像這樣無法使用XPath讀取xml

<xmap-content xmlns="urn:xmind:xmap:xmlns:content:2.0" xmlns:fo="http://www.w3.org/1999/XSL /Format" xmlns:svg="http://www.w3.org/2000/svg" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink" version="2.0"> 

    <sheet id="sdfasdfsdf"> 
     <title> Sheet1 </title> 
    </sheet> 

    <sheet id="fgasdfgasr"> 
     <title> Sheet2 </title> 
    </sheet> 
<xmap-content>

我需要把所有表的標題列表。

我使用XPathExpression expr = navigator.Compile("//sheet");
但我猜它不工作
做什麼。任何建議或代碼都可以。
thnx提前。

來源

2011-11-10 j4m4l

如何讓''值一旦我有'XPathNavigator'對於給定'<sheet>'......以及我正在迭代使用'XPathNodeIterator iterator = navigator.Select（「// xm：sheet」，manager）;' – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/939430/">j4m4l</a></span> <span></span> </small> </span> </p> </div> </div> </div> </div> </div> </article> </div> <div class="answer-title"> <span class="text-logo margin-top-sm">A</span> <h2 class="title h4">回答</h2> </div> <div class="item-description text-md markdown-body margin-bottom-40 voidso"> <article class="board-top-1 padding-top-10"> <div class="post-col vote-info"> <span class="count">2<i class="fa fa-thumbs-up"></i></span> <i class="fa fa-check fa-2x"></i> </div> <div class="post-offset"> <div class="answer fmt"> <p>你的XML定義了默認命名空間：<code class="prettyprint-override">urn:xmind:xmap:xmlns:content:2.0</code>。所以，你需要將它傳遞給前綴的XML引擎，然後使用表達式：</p> <pre><code class="prettyprint-override">//ns:sheet </code></pre> <p>或另一種方式：</p> <pre><code class="prettyprint-override">//*[local-name() = 'sheet'] </code></pre> </div> <div class="post-info"> <div class="post-meta row"> <p class="text-secondary col-lg-6"> <span class="source"> <a rel="noopener" target="_blank" href="https://stackoverflow.com/q/8077142">來源</a> </span> </p> <p class="text-secondary col-lg-6"> <span class="float-right date"> <span>2011-11-10 09:09:23</span> </p> <p class="col-12"></p> <p class="col-12"></p></div> </div>  <div class="comments"> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">我如何將默認命名空間傳遞給xml引擎。使用XPath – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/939430/">j4m4l</a></span> <span></span> </small> </span> </p> </div> </div> </div> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">@ j4m4l，使用'XmlNamespaceManager'：http://msdn.microsoft.com/en-us/library/tywd160x.aspx – <span class="text-secondary"> <small> <span></span> </small> </span> </p> </div> </div> </div> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">@ j4m4l，我已經更新了我的答案。 – <span class="text-secondary"> <small> <span></span> </small> </span> </p> </div> </div> </div> </div> </div> </article> <div> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6208739752673518" data-ad-slot="1038284119" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> <article class="board-top-1 padding-top-10"> <div class="post-col vote-info"> <span class="count">0<i class="fa fa-thumbs-up"></i></span> </div> <div class="post-offset"> <div class="answer fmt"> <p>嘗試</p> <pre><code class="prettyprint-override">XPathExpression expr = navigator.Compile("xmap-content/sheet"); </code></pre> <p>編輯：</p> <pre><code class="prettyprint-override">string st = @"<xmap-content xmlns=""urn:xmind:xmap:xmlns:content:2.0"" xmlns:fo=""http://www.w3.org/1999/XSL /Format"" xmlns:svg=""http://www.w3.org/2000/svg"" xmlns:xhtml=""http://www.w3.org/1999/xhtml"" xmlns:xlink=""http://www.w3.org/1999/xlink"" version=""2.0""> <sheet id=""sdfasdfsdf""> <title> Sheet1 </title> </sheet> <sheet id=""fgasdfgasr""> <title> Sheet2 </title> </sheet> </xmap-content>"; XmlDocument document = new XmlDocument(); document.LoadXml(st); XmlNamespaceManager manager = new XmlNamespaceManager(document.NameTable); manager.AddNamespace("xm", "urn:xmind:xmap:xmlns:content:2.0"); var titles = document.SelectNodes("//xm:sheet/xm:title", manager); </code></pre> </div> <div class="post-info"> <div class="post-meta row"> <p class="text-secondary col-lg-6"> <span class="source"> <a rel="noopener" target="_blank" href="https://stackoverflow.com/q/8077058">來源</a> </span> </p> <p class="text-secondary col-lg-6"> <span class="float-right date"> <span>2011-11-10 09:02:03</span> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/2558060/">Damith</a></span> </p> <p class="col-12"></p> <p class="col-12"></p></div> </div>  <div class="comments"> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">那不行，我猜它的命名空間問題 – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/939430/">j4m4l</a></span> <span></span> </small> </span> </p> </div> </div> </div> <div itemprop="comment" class="post-comment"> <div class="row"> <div class="col-lg-1"><span class="text-secondary">+0</span></div> <div class="col-lg-11"> <p class="commenttext">ok，試着用命名空間正如kirils所說 – <span class="text-secondary"> <small> <a rel="noopener" target="_blank" href="https://stackoverflow.com/users/2558060/">Damith</a></span> <span></span> </small> </span> </p> </div> </div> </div> </div> </div> </article> </div> <div class="clearfix"> </div> <div class="relative-box"> <div class="relative">相關問題</div> <ul class="relative_list"> <li> 1. <a href="http://hk.uwenku.com/question/p-zkoqsxsu-bnn.html" target="_blank" title="使用XPath讀取XML"> 使用XPath讀取XML </a> </li> <li> 2. <a href="http://hk.uwenku.com/question/p-faegvaft-uw.html" target="_blank" title="使用xpath查詢讀取xml java"> 使用xpath查詢讀取xml java </a> </li> <li> 3. <a href="http://hk.uwenku.com/question/p-aluiiuep-bnh.html" target="_blank" title="使用XPATH讀取XML PHP DOM"> 使用XPATH讀取XML PHP DOM </a> </li> <li> 4. <a href="http://hk.uwenku.com/question/p-qbkjmtzp-kg.html" target="_blank" title="VB - 使用XPath讀取XML的問題"> VB - 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