Subject: Re: [xsl] Passing empty parameters discard parameters default value From: Thijs Janssen <thijs.janssen@xxxxxxxxx> Date: Wed, 16 Jun 2004 20:51:20 +0200 |
Hi Michal, The problem is that you ARE passing a parameter to mytemplate_impl. It might eventually be empty, but it still counts as a parameter, and thus no default value is used... (after all, one can imagine cases where passing an empty nodeset as a parameter has a semantical meaning) A possible work-around is: <xsl:template name="mytemplate"> <xsl:param name="p"/> <xsl:call-template name="mytemplate_impl"> // parameter is not passed if its empty <xsl:if test="$p"> <xsl:with-param name="p" select="$p"/> </xsl:if> </xsl:call-template> </xsl:template> regards, Thijs Janssen On Wed, 16 Jun 2004 14:58:16 +0200, ĎURDINA Michal <michal.durdina@xxxxxxxxxxxx> wrote: > > Hello, > > I am having problems with passing empty parameters (no with-param specified) that discard default values of parameters. When I am calling the template and passing no value I want the template to use its default value. > > Example: > > <xsl:template name="mytemplate"> > <xsl:param name="p"/> > <xsl:call-template name="mytemplate_impl"> > <xsl:with-param name="p" select="$p"/> > </xsl:call-template> > </xsl:template> > > <xsl:template name="mytemplate_impl"> > <xsl:param name="p">default p</xsl:param> > p = <xsl:value-of select="$p"/> > </xsl:template> > > When calling: > <xsl:call-template name="mytemplate_impl"/> > the result is: > p = default p > But when calling > <xsl:call-template name="mytemplate"/> > the result is: > p = > > what is wrong in my case, becase I did not supplied any value to parameter $p so I want to see its default value. I know that I can declare the same default value in template "mytemplate" , but then I will have the same value in more than one place and that's not good when I will need to change it. > > Is there any workaround for my problem? > > Thank you, > Michal >
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