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A filter defined on a report/table group limits the group members to a certain values. These filters operate over the group members after the groups are calculated. Group filters are similar to the HAVING clause in a SQL statement.
We will use the filter to hide/show the dynamic groups members. Additionally we add the possibility for dynamic filtering by using report parameters. The example shown is based on the ProductSales demo report
Open the report in the designer and show the Group explorer
Define new Report Parameter DetailsForYear as shown on picture. Use the same DataSource as for the report. The parameter should be MultiValue parameter.
Select the Crosstab (or any cell in it) and invoke the Edit Filters dialog for the Qtr Column group. Enter the filter expression as shown on next picture
Preview the report - see the Preview.png. Now it is possible to select for which year to show Quarter columns and hide for the rest.