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    <p>Frankly, this looks about right to me - sometimes a simple substring is good enough.</p> <p>However, if you're in .NET land and you're really needing extra functionality .NET has <a href="http://www.15seconds.com/issue/031112.htm" rel="noreferrer">XSLT Extension Objects</a></p> <hr> <p>edit: oic, you've got a basic apply-templates conceptual problem. Try this (note the copy and the root template match):</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"&gt; &lt;xsl:template match="*"&gt; &lt;xsl:copy&gt;&lt;xsl:apply-templates /&gt;&lt;/xsl:copy&gt; &lt;/xsl:template&gt; &lt;xsl:template match="deliverydateasked"&gt; &lt;xsl:copy&gt; &lt;xsl:call-template name="FormatDate"&gt; &lt;xsl:with-param name="DateTime" select="."/&gt; &lt;/xsl:call-template&gt; &lt;/xsl:copy&gt; &lt;/xsl:template&gt; &lt;xsl:template name="FormatDate"&gt; &lt;xsl:param name="DateTime" /&gt; &lt;xsl:variable name="date"&gt; &lt;xsl:value-of select="substring-before($DateTime,'T')" /&gt; &lt;/xsl:variable&gt; &lt;xsl:if test="string-length($date) != 10"&gt; &lt;xsl:value-of select="$DateTime"/&gt; &lt;/xsl:if&gt; &lt;xsl:if test="string-length($date) = 10"&gt; &lt;xsl:value-of select="$date"/&gt; &lt;/xsl:if&gt; &lt;/xsl:template&gt; &lt;/xsl:stylesheet&gt; </code></pre> <p>templates is a hard concept to learn, you might be better off starting with the more straightforward <code>for-each</code>, and/or it seems you could do with some XSLT tutorials/books.</p>
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    1. POXSLT transformation datetime to date format
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    1. COOn "using the more straightforward for-each": http://gregbeech.com/blogs/tech/archive/2006/08/17/using-xsl-for-each-is-almost-always-wrong.aspx. I vote for doing it properly from the start. :)
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    2. COFrom personal experience of teaching XSLT to newbies I strongly disagree with that - for-each is a translatable and easily grasped concept, and if anything is a handy springboard to explain the template concept "now you've got that, see what this can do!"
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    3. COThe link Tomalak gave to the Greg Beech article has changed; it's now http://gregbeech.com/blog/using-xsl-for-each-is-almost-always-wrong
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