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For example, I want to add an attribute to this node:
<Party> So it will look like:
<Party role="this should be set using XPath"> Attribute value has to come from XPath.
The following will not work :)
<Party role=<xsl:value-of select="some/xpath/path"/>> How to do that?
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The <xsl:attribute> element creates an attribute in the output document, using any values that can be accessed from the stylesheet. The element must be defined before any other output document element inside the output document element for which it establishes attribute values.
Attributes can be added or modified during transformation by placing the <xsl:attribute> element within elements that generate output, such as the <xsl:copy> element. Note that <xsl:attribute> can be used directly on output elements and not only in conjunction with <xsl:element> .
Definition and Usage. The <xsl:number> element is used to determine the integer position of the current node in the source. It is also used to format a number.
The <xsl:apply-templates> element applies a template to the current element or to the current element's child nodes. If we add a "select" attribute to the <xsl:apply-templates> element, it will process only the child elements that matches the value of the attribute.
Attributes of literal result elements support the attribute value template syntax, using {}:
<Party role="{some/xpath/path}"> 
<xsl:template match="Party"> <Party role="{some/xpath/path}"> <xsl:apply-templates select="@* | node()"/> </Party> </xsl:template> should do. As an alternative
<xsl:template match="Party"> <xsl:copy> <xsl:attribute name="role" select="some/xpath/path"/> <xsl:apply-templates select="@* | node()"/> </xsl:copy> </xsl:template> Of course the apply-templates is only necessary if there are attribute and/or child nodes you also want to be processed (for example to be copied by an identity transformation template).
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