My Products.cfc is:

<cffunction name="getProducts" access="remote" returntype="any" output="yes">
        <cfargument name="page">
        <cfargument name="pageSize">
        <cfargument name="gridsortcolumn">
        <cfargument name="gridsortdirection">
        <cfif ARGUMENTS.gridsortcolumn EQ ""><cfset ARGUMENTS.gridsortcolumn = "artcod"></cfif>
        <cfif ARGUMENTS.gridsortdirection EQ ""><cfset ARGUMENTS.gridsortdirection = "ASC"></cfif>
        <cfquery name="qryProducts" datasource="#this.DSN#" result="result">
            SELECT * FROM articoli
            ORDER BY 
                <cfqueryparam cfsqltype="cf_sql_varchar" value="#ARGUMENTS.gridsortcolumn#"> 
                <cfqueryparam cfsqltype="cf_sql_varchar" value="#ARGUMENTS.gridsortdirection#">
        </cfquery>
        <cfreturn QueryConvertForGrid(qryProducts, page, pageSize)>
    </cffunction>

The query params work correctly, my query runs in the right way but.... the returning JSON is not sorted!

Could this be an error in the queryconvert function?

However my cfgrid doesn't work:

<cfset args = StructNew()>
<cfset args.name = "ProductsGrid">
<cfset args.format = "html">
<cfset args.bindOnLoad = "true">
<cfset args.bind = "cfc:Products.getProducts({cfgridpage},{cfgridpagesize},{cfgridsortcolumn},{cfgridsortdirection})">
<cfset args.stripeRows = true>
<cfset args.selectColor = "##D9E8FB">
<cfset args.selectmode = "edit">
<cfset args.onchange = "cfc:Products.editProduct({cfgridaction},{cfgridrow},{cfgridchanged})"> 

<cfform>
    <cfgrid attributeCollection="#args#" pagesize="20">
        <cfgridcolumn name="artid" display="false">
        <cfgridcolumn name="artcod" header="xxx">
        <cfgridcolumn name="artdes" header="Descrizione" width="250">
        <cfgridcolumn name="artdesrc" header="xxx">
        <cfgridcolumn name="artcodpr" header="xxx">
        <cfgridcolumn name="artcodbar" header="xxx">
        <cfgridcolumn name="artprzacq" header="xxx">
        <cfgridcolumn name="artprzvend" header="xxx">
    </cfgrid>
</cfform>

What am I missing?