Using xsl when to test for attribute values

Question

Am using <xsl:when> in my code.I need to test values for 2 different attributes in the "when" condition below i.e.(<xsl:when test="??">) How do i do that please?

I tried this,but it does not work:

<xsl:when test="@Attrb1[.!=''] and @Attrb2[.!='']">

Also, this gives an error too:

<xsl:when test="@Attrb1 !='' and @Attrb2 !=''"> 

msxml3.dll error '80004005'

error '80004005'
Expected token 'eof' found '!='. @Attrb -->!=<--'' and @Attrb2 !=''

Code:

<xsl:when test="Condition1"> 
<xsl:choose> 
    <xsl:when test="??"> 
         <xsl:value-of select="somtext1"/> </xsl:when> 
    <xsl:otherwise> 
          <xsl:value-of select="somtext2"/> 
</xsl:otherwise> 
</xsl:choose>
</xsl:when>

Thanks.

Answer 1

Use instead:

<xsl:when test="@Attrb2!='' and @Attrb2!=''">

Answer 2

Or use:

<xsl:when test="not(@Attrb1='') and not(@Attrb2='')">