Hi Christophe,
The
RowNumber() function can take a
scope as argument, so if you want to count the number of rows over the whole crosstab, you should use the following expression in the conditional formatting:
=RowNumber("crosstab_name") % 2
where
crosstab_name is the name of the current crosstab.
Otherwise when using just
RowNumber() you are counting the number of rows in the current data-context (defined by the crosstab groupings).
Regards,
Nasko
Telerik
Have you tried the new visualization options in Telerik Reporting Q2 2013? You can get them from your account.