the selection functionality is available for rich:extendedDataTable only.
Thanks for your reply.
I've known that multi selection functionality is provided "out of the box" for the extended datatable component, but unfortunatelly i refer to an application which uses the rich:datatatable,
so i prefer to find a solution to implement a custom multi select feauture to rich:datatable, instead of replacing all the application grids, from rich:datatable to rich:extendedDatatable.
Any workarounds would be appreciated.
if you would do that JSF way, you should probably stick with a h:booleanCheckbox in each row.
You can provide nice styling - when checkbox's value is true, the row is highlighted and vice versa.
I think Juraj is correct that it should be more appropriate to use more advanced JSF table component like rich:extendedDataTable.