XSLT Sort on child subelements - sorting

Question

I am trying to output this entire XML but with the EVENT elements sorted by ID. Being new to XSLT I thought I would still give it a try but after many attempts and reading other examples and how to guides I still can't get what I thought was a simple thing to work.
<?xml version="1.0" encoding="UTF-8"?>
<PublishWCWORKORDEROUT xmlns="http://www.xcessteel.com/maxo" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" creationDateTime="2021-05-10T08:23:18+00:00" transLanguage="EN" baseLanguage="EN" messageID="3116171.1620634998889850919" maxoVersion="7 6 20190514-1348 V7611-365" event="1">
<WCWORKORDEROUTSet>
<WORKORDER action="Replace">
<ACTCATEGORY />
<X_3857>1.1838832494481975E7</X_3857>
<Y_3857>-2766476.1752903816</Y_3857>
<SPEC>
<ALNVALUE />
<REFID xsi:nil="true" />
<ASSETATTRID>ACCOUNT_NO</ASSETATTRID>
<CHANGEBY>ADMIN</CHANGEBY>
</SPEC>
<SPEC>
<ALNVALUE />
<REFID xsi:nil="true" />
</SPEC>
<SPEC>
<ALNVALUE />
<REFID xsi:nil="true" />
<ASSETATTRID>METER_LOCATION</ASSETATTRID>
</SPEC>
<EVENT>
<ID>CCC333</ID>
<WORKTYPE>UNPLANNED</WORKTYPE>
</EVENT>
<EVENT>
<ID>AAA111</ID>
<WORKTYPE>PLANNED</WORKTYPE>
</EVENT>
<EVENT>
<ID>BBB222</ID>
<WORKTYPE>SCHEDULED</WORKTYPE>
</EVENT>
<ASSIGNMENT>
<AMCREW />
<WPLABORID>209336</WPLABORID>
</ASSIGNMENT>
<WCWODETAILS>
<REFID xsi:nil="true" />
<CUSTOMERNAME />
<WCREGION>SWR</WCREGION>
<ID>96057400</ID>
</WCWODETAILS>
</WORKORDER>
</WCWORKORDEROUTSet>
</PublishWCWORKORDEROUT>
I have tried with this XSLT but clearly it is not correct.
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<!-- identity transform -->
<xsl:template match="#*|node()">
<xsl:copy>
<xsl:apply-templates select="#*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="/PublishWCWORKORDEROUT">
<xsl:copy>
<xsl:apply-templates select="EVENT">
<xsl:sort select="ID"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>

Answer 1

You have to declare the namespace xmlns="http://www.xcessteel.com/maxo" and then use that prefix in your match and the sorting could be done like this:
EDIT on 2021-05-24 on 10:19: attribute action="Replace" was missing
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:maxo="http://www.xcessteel.com/maxo"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<!-- identity transform -->
<xsl:template match="#*|node()">
<xsl:copy>
<xsl:apply-templates select="#*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="maxo:WORKORDER">
<xsl:copy>
<!-- Following line was missing -->
<xsl:apply-templates select="#*"/>
<xsl:apply-templates select="maxo:EVENT[1]/preceding-sibling::*"/>
<xsl:apply-templates select="maxo:EVENT">
<xsl:sort select="maxo:ID"/>
</xsl:apply-templates>
<xsl:apply-templates select="maxo:EVENT[ position()=last()]/following-sibling::*"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
And as an alternative, the following would work as well:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:maxo="http://www.xcessteel.com/maxo"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<!-- identity transform -->
<xsl:template match="#*|node()">
<xsl:copy>
<xsl:apply-templates select="#*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="maxo:EVENT[not(preceding-sibling:: maxo:EVENT)]">
<xsl:for-each select=".|following-sibling:: maxo:EVENT">
<xsl:sort select="maxo:ID"/>
<xsl:copy>
<xsl:apply-templates select="#*|node()"/>
</xsl:copy>
</xsl:for-each>
</xsl:template>
<xsl:template match="maxo:EVENT[ preceding-sibling:: maxo:EVENT]"/>
</xsl:stylesheet>