changing a variable in xml - pls help! ! ! ! 2

[andrei22]

i have tow for-each and one variable witch can be changed if some conditions are true, but after the finish of the for each the variable it is not any more recognized.


please read this code:

<xsl:for-each ....
<xsl:if ..contition1..
<xsl:variable name="var">1</xsl:variable>the variable can be changed here
</xsl:if>
......
<xsl:for-each ....
<xsl:if ..condition2..
<xsl:variable name="var">2</xsl:variable>but also here in the second for-each.
</xsl:if>
</xsl:for-each>
</xsl:for-each>

<xsl:choose>
<xsl:when test="$var=something"> ..... </xsl:when>here is the problem
<xsltherwise>
........
</xsltherwise>
</xsl:choose>

there is other solution to implement this? i think using variables will not work. pls help me!

thanks

 

[jel]

As you declare and assign the variable in a for-each, you re-assign it multiple times. It is rather inpredictable what the value is going to be.

Apart from that, the variable is 'out of scope' outside the <xsl:if ...>.
The scope-problem can be solved like this:

<xsl:variable name="myvar">
<xls:choose>
<xsl:when test="...">1</xsl:when>
<xsl:when test="...">2</xsl:when>
<xsltherwise>0</xsltherwise>
</xsl:choose>
</xsl:variable>
...
<xsl:choose>
<xsl:when test="$myvar=1">...</xsl:when>
<xsl:when test="$myvar=2">...</xsl:when>
<xsltherwise>...</xsltherwise>
</xsl:choose>

Enjoy,
jel

 

[andrei22]

the problem is that i need the for-each because the variable will be changed using the conditions that I obtain from the for-each loop. I think a solution can be by using recursion but i do not now how to use it in this case.

 

[k5tm]

XSLT does not support assignment in the sense of most procedural languages.

I think a solution can be by using recursion but i do not now how to use it in this case.

Please describe the actual problem. Without that we cannot imagine a correct solution.

Tom Morrison

http://www.liant.com

 

[andrei22]

i do not now how to traverse all the nods of the tree using recursion, because in this way by using parameters the problem can be solved, because parameters can change their values. If you can tell me how to do this the problem is solved.

tanks

 

[k5tm]

Google [google]xslt recursion examples[/google] finds this set of examples.

Tom Morrison

http://www.liant.com