How to use KEY in xslt

I think XML is a very simple storage medium that you can save and query in it. But all data is storage as a tree node in the XML. In this case, it can very simple to save hierarchy data structure. But how to handle it you have reference item?

Just use key in your XML code. For more detail please refer the sample as follow:

t1.xslt

<?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:key name="ownerById" match="item" use="@ID"/> <xsl:output indent="yes"/> <xsl:template match="RefItem"> <xsl:text> <a name="more"></a> <br><br> <script type="text/javascript"><!-- google_ad_client = "pub-4827953934068065"; google_ad_width = 468; google_ad_height = 60; google_ad_format = "468x60_as"; google_ad_type = "text_image"; google_ad_channel = ""; //--></script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> <p align="right"> <a href="http://www.evanlin.com/blog/archives/cat_vc6.html" alt="$MTCategoryLabel$">VC6相關問題</a> / <a href="http://www.evanlin.com/blog/archives/cat_xml.html" alt="$MTCategoryLabel$">XML, XSLT, XPATH, 所有與ＸＭＬ相關的</a> <br> </p> <script language='JavaScript'> var OB_langJS = 'http://widgets.outbrain.com/lang_chi.js'; var OBITm = '1311159414241';var OB_raterMode = 'none';var OB_recMode = 'strip'; var OutbrainPermaLink='http://www.evanlin.com/blog/archives/000434.html'; if ( typeof(OB_Script)!='undefined' )OutbrainStart(); else { var OB_Script = true; var str = unescape("%3Cscript src=\'http://widgets.outbrain.com/OutbrainRater.js\' type=\'text/javascript\'%3E%3C/script%3E"); document.write(str); } </script> <span class="posted">由 Evan 發表於 June 08, 2006 </span> </div> <a id="track_back"></a> <div class="comments-head"><a name="comments"></a>引用</div> <div class="comments-body">本文的引用網址:<br /> <br /><br /> 以下是前來引用的連結 <a href="http://www.evanlin.com/blog/archives/000434.html">'How to use KEY in xslt'</a> 來自 <a href="http://www.evanlin.com/blog/">Blog E</a></div> <!-- Search Google --> <center> <form action="http://www.google.com.tw/cse" id="cse-search-box"> <div> <input type="hidden" name="cx" value="partner-pub-4827953934068065:1bc6o0-uxef" /> <input type="hidden" name="ie" value="big5" /> <input type="text" name="q" size="31" /> <input type="submit" name="sa" value="搜尋" /> </div> </form> <script type="text/javascript" src="http://www.google.com/coop/cse/brand?form=cse-search-box&lang=zh-Hant"></script> </center> <!-- Search Google --> <div class="comments-head"><a name="comments"></a>迴響</div> <a id="comments_post"></a> <div class="comments-head">發表迴響</div> <div class="comments-body"> <form method="post" action="http://www.evanlin.com/cgi-bin/mt/mt-comments.cgi" name="comments_form" onsubmit="if (this.bakecookie[0].checked) rememberMe(this)"> <input type="hidden" name="static" value="1" /> <input type="hidden" name="entry_id" value="434" /> <div style="width:180px; padding-right:15px; margin-right:15px; float:left; text-align:left; border-right:1px dotted #bbb;"> <label for="author">姓名:</label><br /> <input tabindex="1" id="author" name="author" /><br /><br /> <label for="email">Email 地址:</label><br /> <input tabindex="2" id="email" name="email" /><br /><br /> <label for="url">網址:</label><br /> <input tabindex="3" id="url" name="url" /><br /><br /> </div> 記住我的資訊?<br /> <input type="radio" id="bakecookie" name="bakecookie" /><label for="bakecookie">是</label><input type="radio" id="forget" name="bakecookie" onclick="forgetMe(this.form)" value="Forget Info" style="margin-left: 15px;" /><label for="forget">否</label><br style="clear: both;" /> <label for="text">迴響:</label><br /> <textarea tabindex="4" id="text" name="text" rows="10" cols="50">

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