Subject: Re: What is the value of an undefined param From: David Carlisle <davidc@xxxxxxxxx> Date: Tue, 21 Mar 2000 23:02:28 GMT |
If I use <xsl:value-of select"$v"/> and I have not defined the variable....what is its value? I am trying to find a way to test if a value was entered Either the variable is declared, in which case that is its value or it is a syntax error referencing an undefined value and your stylesheet will not run. If v is a parameter to the stylesheet and you want to know if another value has been passed in just give it a recognisable default say <xsl:param name="x" select="'no-supplied-value'"/> then <xsl:if test="$x='no-supplied-value'"> is probably only true if a value wasn't supplied. (ie it would also be true if somone maliciously supplied the value 'no-supplied-value' David XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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