I have tryed this method:

2. You can pass values by querysting for example. If the target UDT has a moduleId of for example 67, the value of querystring named udt_67_param_NameOfParameter will be passed into the  UDT XSL script as param_NameOfParameter. Does this help?

Founded in this post

But doesen't work. I have tryed with Default Grid Table and with User Defined XSL Transformation but never change
I need to add something to my XLS?

Can you help me?

Thanks rmartin

Partially solved!!!
The parameter works with the XLS template.... but i can't use this

I try to modify my query if there are some parameter but I have allways the same error:
behind two example that i try to implemet for modify my query, but they incredibly doesent work!!!
I have putted the currentData variable Global but never change?!?

 <xsl:template match="/udt:UserDefinedTable">
.......
<xsl:choose>
    <xsl:when test="1 = 1">
      <xsl:variable name="currentData" select="udt:Data[contains(*[name()=$searchColumns][1],$search) ]" />
    </xsl:when>
    <xsl:when test="1 != 1">
      <xsl:variable name="currentData" select="udt:Data[r contains(*[name()=$searchColumns][2],$search)]" />
    </xsl:when>
  </xsl:choose>

 <xsl:if test="1 = 1">
      <xsl:variable name="currentData" select="udt:Data[contains(*[name()=$searchColumns][1],$search) or contains(*[name()=$searchColumns][2],$search)]" />
    </xsl:if>

I have all the same error:
XSL Tranformation failed. Switched back to Default Grid Table

Is there one example for change the query in function of the parameters?

rmartin