I'm trying to transform a datetime to a date format yyyy-MM-dd, because I'm using the xsd.exe tool the xs:date datatypes are automatically changed into a datetime datatype, because there is no type in the .NET Framework that matches the type xs:date completely.

But I can't get it to work

<articles>
        <article>
          <articleid>48992</articleid>
          <deliverydateasked>2009-01-29T00:00:00+01:00</deliverydateasked>
        </article>
        <article>
          <articleid>48993</articleid>
          <deliverydateasked>2009-01-30T00:00:00+01:00</deliverydateasked>
        </article>
</articles>

trying to convert the xml to

<articles>
        <article>
          <articleid>48992</articleid>
          <deliverydateasked>2009-01-29</deliverydateasked>
        </article>
        <article>
          <articleid>48993</articleid>
          <deliverydateasked>2009-01-30</deliverydateasked>
        </article>
</articles>

currently I'm using this XSLT

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:template match="/">
	<articles>
		<xsl:apply-templates select="article">
		</xsl:apply-templates>
            </articles>
</xsl:template>

<xsl:template name="FormatDate">

	<xsl:param name="DateTime" />
	<xsl:variable name="date">
		<xsl:value-of select="substring-before($DateTime,'T')" />
	</xsl:variable>

	<xsl:if test="string-length($date) != 10">
		<xsl:value-of select="$DateTime"/>
	</xsl:if>
	<xsl:if test="string-length($date) = 10">
		<xsl:value-of select="$date"/>
	</xsl:if>
</xsl:template>

<xsl:template match="article">
		<xsl:call-template name="FormatDate">
			<xsl:with-param name="DateTime" select="deliverydateasked"/>
		</xsl:call-template>	
</xsl:template>

Does anyone know a good xslt transformation.

Thanks in advance

The output result of my code is

<articles />