DevGuru XSLT element xsl:with-param



			ELEMENT: xsl:with-param <xsl:with-param name="qname" > </xsl:param> Or: <xsl:with-param name="qname" select="expression" /> The xsl:with-param element is used to set the explicit value of a named parameter when using the xsl:apply-templates and the xsl:call-template elements. The concept is that the xsl:param element is used to declare a local or global parameter by assigning a name and a default value. The xsl:with-param element is used to set the actual (explicit) value which will be used in place of the default value. The name cited by the xsl:with-param element must match a name in an xsl:param element. If there is no such match, the xsl:with-param element is simply ignored, but it is not treated as an error. Like all XSLT elements, the xsl:with-param element must be closed (well-formed). If the select attribute is present, then this element is self-closing. If the select attribute is not present, then this element is not self-closing and the separate closing element is mandatory. name="qname" The mandatory name attribute is the qname of the expression. A qname is a qualified name that is composed of an optional namespace prefix, a colon which is only present if there is a prefix, and a mandatory XML name (for example, xsl:zipcode or zipcode). Note the following rules concerning when two different parameters can have the same name. (The same rules apply to the name attribute of the xsl:param element.) A name can be repeated if one of the names is in an imported stylesheet and therefore has a lower import precedence. Under these circumstances, the higher import precedence name will always have precedence. Two different parameters can have the same name if they can never occur within the same scope. Therefore no ambiguity can occur (which would be an error). A local and global parameter can have the same name. However, when the local parameter is in scope, the global parameter cannot be accessed. If the with-param element contains no content and a select attribute has been not assigned, then the named parameter is set to be the empty string. *select="expression"* The optional select attribute is an expression that defines the parameter. If the select attribute is present, then the xsl:with-param element cannot contain any content and is self-closing. If an expression is given, the data type must be Boolean, node-set, number or string. If it is a (literal) string, the string must be enclosed within opening and closing quotes and in turn, that default value must be enclosed again in opening and closing quotes. For example: <xsl:with-param name="car" select=" ' Ford ' " /> Or <xsl:with-param name="car" select=' " Ford " ' /> If the name attribute is assigned, a select attribute is not assigned, and there is no content, then the named parameter is set to be the empty string for the default value. We use the DevGuru Staff List XML file for our example with the following header: <?xml-stylesheet type="text/xsl" href="xslt_example_withparam.xsl"?> and we name it: xslt_example_withparam.xml Code for xslt_example_withparam.xsl: <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"> <xsl:variable name="hoo"> <html> <body> <xsl:call-template name="boo"> <xsl:with-param name="name" /> <xsl:with-param name="dob" /> </xsl:call-template> </body> </html> </xsl:variable> <xsl:template name="boo" match="/"> <xsl:param name="name" /> <xsl:param name="dob" /> <xsl:for-each select="devguru_staff/programmer"> <div> NAME: <xsl:value-of select="name" /> <br /> DOB: <xsl:value-of select="dob" /> <hr /> </div> </xsl:for-each> </xsl:template> </xsl:stylesheet> Output: Click to view output in separate window - requires Internet Explorer