Week 12 xml and xsl

Week 12 XML and XSL Revision :

XSLT (Extensible Stylesheet Language Transformations) ,[object Object]

Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

XSL Syntax revision ,[object Object]

You must then use the Correct Style Sheet Declaration ,[object Object],[object Object],[object Object],[object Object]

Link the XSL Style Sheet to the XML Document ,[object Object],[object Object],[object Object]

The <xsl:template> Element ,[object Object],Node Description/ attributes Example xsl:template Specifies processing templates “ match” is when the template should be used. “name” gives the template a name which xsl:call-templates etc can be use to call this template. <xsl:template match="/input"> … </xsl:template>

The <xsl:value-of> Element ,[object Object],This element generally uses the select attributes to specify the string to output. This element is self closing. <xsl:value-of select="catalog/cd/title"/> Node Description/ attributes Example xsl:value-of The <xsl:value-of> element is used to extract the value of a selected node. This element generally uses the select attributes to specify the string to output. This element is self closing. <xsl:value-of select="catalog/cd/title"/>

The <xsl:for-each> Element ,[object Object],Filtering the Output We can also filter the output from the XML file by adding a criterion to the select attribute in the <xsl:for-each> element. Node Description/ attributes Example xsl:for-each Creates a loop which repeats for every match “ select” designates the match criteria Must be closed off <xsl:for-each select="catalog/cd" > … </xsl:for-each>

Filtering the Output ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Take a look at this modified example XSL style sheet: ,[object Object]

XSLT <xsl:sort> Element ,[object Object],Node Description/ attributes Example xsl:sort The sort element is used to sort the output by a particular element in ascending order. It can be a self contained element so there is no closing tag. It has the following attributes order="ascending" | " descending" select="expression" data-type="number" "qname" | "text Can be included inside the xsl:for-each and xsl:template elements <xsl:sort />

To sort the output, simply add an <xsl:sort> element inside the <xsl:for-each> element in the XSL file: ,[object Object]

XSLT <xsl:if> Element ,[object Object],[object Object],[object Object],Node Description/ attributes Example xsl:if Yes or No conditions “ test” specifies criteria for entering the if To add a conditional test, add the <xsl:if> element inside the <xsl:for-each> element in the XSL file: <xsl:if test="price > 10"> … </xsl:if>

Example ,[object Object],[object Object]

XSLT <xsl:choose> ,<xsl:when> and <xsl:otherwise> Elements ,[object Object],Syntax <xsl:choose> <xsl:when test=" expression "> ... some output ... </xsl:when> <xsl:otherwise> ... some output .... </xsl:otherwise> </xsl:choose>

the <xsl:choose> Elements Node Description/ attributes Example xsl:choose Multiple choices No attributes <xsl:choose> <xsl:when test=" expression "> ... some output ... </xsl:when> <xsl:otherwise> ... some output .... </xsl:otherwise> </xsl:choose> xsl:when Yes or No conditions “ test” specifies criteria for entering the if <xsl:when test="$type='radio'"> … </xsl:when> xsl:otherwise The default choice if none of the “xsl:when” criteria are met <xsl:otherwise> … </xsl:otherwise>

Where to put the Choose Condition ,[object Object],[object Object],[object Object]

Week 12 xml and xsl

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Week 12 xml and xsl