Home >Online Product Documentation >Table of Contents >xsl:if and xsl:choose < Previous| Next > xsl:if and xsl:choose The xsl:if instruction cannot express an else condition. It has a single input port, and a single output port, as shown in Figure 266. Figure 266. xsl:if Instruction Block Once fully defined, the xsl:if block generates code like the following: <Review> <xsl:if test="authors/author= 'Minollo'"> <xsl:value-of select="'Recommended'"/> </xsl:if> <xsl:if test="contains(authors/author,'Pedruzzi')"> <xsl:value-of select="'A best buy'"/> </xsl:if> </Review> If you need to express an else condition, use the xsl:choose instruction block. This instruction block has two output ports by default, one for the xsl:when test= attribute, and one for the one xsl:otherwise element. Figure 267. xsl:choose Instruction Block The xsl:choose instruction block generates code like the following: <Review> <xsl:choose> <xsl:when test="authors/author= 'Minollo'"> <xsl:value-of select="'Recommended'"/> </xsl:when> <xsl:when test="contains(authors/author,'Pedruzzi')"> <xsl:value-of select="'authors best buy'"/> </xsl:when> <xsl:otherwise> <xsl:value-of select="'bah...'"/> </xsl:otherwise> </xsl:choose> </Review> If you need to define more than one xsl:when test= attribute, use the xsl:choose shortcut menu (right click) and select Add When Port. Note   Stylus Studio generates the xsl:otherwise element by default for all xsl:choose instructions. < Previous| Next >