Performing a search which returns no results.

CronosS

Hey,
let's say I have a group of buttons the user can click on to filter the rows of the datatable.

Example case:
I have 2 buttons. When I click on any of them, it will be selected.
I have an handler on the click event (of the buttons) which performs a search with the concatenated values of all the selected buttons.
If only the first one is selected, the search will be .search('0', true). If only the second one is selected, the search will be .search('1', true). If both are selected, the search will be .search('0|1', true)
Now, if none are selected, the search is .search('', true) and every results are shown while I would want to show no results.

Is there a way to make that the table shows no result? (other than providing an arbitrary non existing value to the search method)
Thanks.