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xsl:with-param
xsl:with-param
Passes a parameter value to a template.
Format
Description
The
xsl:with-param
instruction passes a parameter value to a template. If the template has no matching
xsl:param
declaration, the XSLT processor ignores the parameter. The value of parameter_name is a qualified name.
The
name
attribute is required, and it must be a string. The value of the
name
attribute is a qualified name.
The value that you pass to a template can be an object of any of the types that are returned by expressions. You can specify the value of the parameter in several ways:
- Specify the
select
attribute. The value of the
select
attribute must be an expression. The XSLT processor evaluates the expression, and the result is the value of the parameter. If you specify the
select
attribute, you must not specify any contents for the
xsl:with-param
instruction. In other words, do not specify parameter_value.
- Specify the
expr
attribute. It is interpreted as an attribute value template. It allows computation of the value expression.
- Specify parameter_value. If you specify parameter_value, you must not specify the
select
or
expr
attribute.
- Specify none of the above. In this case, the value of the parameter is an empty string.
The
xsl:with-param
element must be a child of
xsl:apply-templates
or
xsl:call-template
.
You can specify the
xsl:with-param
instruction in
xsl:call-template
and
xsl:apply-template
instructions.
Example
Suppose you specify the following parameter for a template:
You can pass another value for this variable as follows: