clueless on XSL:Variables!

Hi All

I have a question about using xsl:variables and how I could use them for loop counters or holding a temporary list of data that i want to do more processing on

I have an XML file with graph data that i need to extract the data sets from and concatenate into a comma separated string
e.g

<Graph>
<Params>
<ParamName>dataset0yValues</ParamName>
<ParamValue>123456</ParamValue>
</Params>
<Params>
<ParamName>dataset1yValues</ParamName>
<ParamValue>9384</ParamValue>
</Params>
.
.
.
<Params>
<ParamName>dataset0Name</ParamName>
<ParamValue>Sales YTD</ParamValue>
</Params>
<Params>
<ParamName>dataset1Name</ParamName>
<ParamValue>Sales Jun 03</ParamValue>
</Params>
.
.
.
</Graph>


i am using the following XSL transformation to parse this data to come up with a comma separated string
e.g

<xsl:for-each select="Graph/Params">
<xsl:if test="contains(ParamName, 'Values')">
<PARAMS BARDATA=><xsl:value-of select="concat(ParamValue, ',')"/>>
</xsl:if>
</xsl:for-each>

which gives me:

<PARAMS BARDATA=123456,9384,>

the problem is that this leaves an extra ',' before the end '>' > 'greater than' sign.

can i use xsl:variables to store a temporary string then do a substring on it when the xsl:for-each loop has finished?


in any given xml file with graph data, i don't know how many <Params> sections there will be

any tips gladly received

tia

Hi Tia,

there is no possibility to set a variable more than once.
Try to solve your problem recursivly or remove the comma at the end of the string with something like: