Re: Filter by a parameter

> But it doesnt works...


Please see the list posting guidelines which suggest showing a small
input and the required output. 

if $supplier_param is set to something that tests as false (such as the
empty string) then $test will be set by
<xsl:otherwise>
*
</xsl:otherwise>
to be the string of length three consisting of a newline a * and another
newline.
so
 Supplier=$testtests that the supplier element in teh original xml
consists of a newline a * and a newline.

What do you want to test, are you expecting a * at all in the input or
do you want a kind of wildcard, in which case you don't need a test at
all

I suspect you want

/Root/Mynode[Complete='true' and ($supplier_param='' or $supplier_param=Supplier)]

David