empty string

Is there a way to put an empty string in xsl.  I use <xsl:value-of select="' 
'"/>.  Somehow it is automatically filled with a value of another cell.  Any 
ideas why?  Thanks!

<gmr:Cell Col="3"  Row="31" ValueType="60">
      <xsl:attribute name="Row">
         <xsl:value-of select="30 + $rownumber"/>
      </xsl:attribute>     
       <xsl:value-of select="' '"/>
     </gmr:Cell>

-----Original Message-----
From: J.Pietschmann [mailto:j3322ptm(_at_)yahoo(_dot_)de]
Sent: Tuesday, June 17, 2003 5:07 PM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] grouping by unique...


Fei Zheng wrote:

> I'd like to have an unique solution list.  Anyone can tell what's
> wrong with the following code which gives all solutions instead of
> the unique solutions?
>             select="item[not(metadata/solution = 
> preceding-sibling::metadata/solution)]/metadata/solution"    />
You are using the preceding-sibling on the wrong element.
Try
   select="item/metadata/solution[not(. = preceding-sibling::solution)]"/>

J.Pietschmann



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