Adding XSL:Stylesheet If Then Else - xslt

Question

I am trying to use the Choose, When and Otherwise statement for a query I am writing for LDAP in CCure ( Access Control System). TEXT18 value should be "Inactive". Text12 value should be "False". Otherwise pulls the data from the LDAP attribute and creates another column name "Disable". Hope this makes sense and thank you.
<?xml version ="1.0" encoding="utf8" ?>
<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" />
<!-- Parameters assigned at runtime. -->
<xsl:param name="paramCurrentTimestamp">20001231173010</xsl:param>
<xsl:param name="paramCurrentDT" >12/31/2000 5:30:10 PM</xsl:param>
<xsl:param name="paramCurrentCulture">en-US</xsl:param>
<!-- The transformation below provides trivial default copy of everything. -->
<xsl:template match="*|#*">
<xsl:choose>
<xsl:when Text18=”Inactive”><xsl:value-of select=”Inactive”/>.</xsl:when>
<xsl:when Text12=”False”><xsl:value-of select=”False”/>.</xsl:when>
<xsl:otherwise> "ucscPersonEmployeeStatus[text()='']">
<xsl:element name="Disabled">1</xsl:element>
<xsl:copy-of select="." />
</xsl:template>
<xsl:template match="#*">
<xsl:copy />
</xsl:template>
<!-- End of customizable area. -->
</xsl:stylesheet>

Answer 1

You forgot to close the </xsl:otherwise> and the </xsl:choose> elements. Fixing these stylesheets issues, the following may work for you:
<?xml version ="1.0" encoding="utf8" ?>
<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" />
<!-- Parameters assigned at runtime. -->
<xsl:param name="paramCurrentTimestamp">20001231173010</xsl:param>
<xsl:param name="paramCurrentDT" >12/31/2000 5:30:10 PM</xsl:param>
<xsl:param name="paramCurrentCulture">en-US</xsl:param>
<!-- The transformation below provides trivial default copy of everything. -->
<xsl:template match="*|#*">
<xsl:choose>
<xsl:when Text18="Inactive">
<xsl:value-of select="Inactive"/>
.</xsl:when>
<xsl:when Text12="False">
<xsl:value-of select="False"/>
.</xsl:when>
<xsl:otherwise> "ucscPersonEmployeeStatus[text()='']">
<xsl:element name="Disabled">1</xsl:element>
<xsl:copy-of select="." />
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template match="#*">
<xsl:copy />
</xsl:template>
<!-- End of customizable area. -->
</xsl:stylesheet>

Answer 2

You have two template rules that match attributes (#*) and that do different things. The first one (with match="*|#*") doesn't look as if it was designed to handle attributes.
When the entire body of a template rules consists of an xsl:choose, it's often better to split it into multiple template rules, for example
<xsl:template match="*[Text18='Inactive']">
<xsl:value-of select="`Inactive`"/>
</xsl:template>
<xsl:template match="*[Text12='False']">
<xsl:value-of select="`False`"/>
</xsl:template>
I'm guessing here that you want to output the literal strings "Inactive" and "False" rather than the content of elements named "Inactive" and "False", but with no information about your input and desired output, this can only be a guess.