Filtering through ClientDataSource

[Ricardo]

Hi, I need to filter the Grid through a Client DataSource in client side.
I can filter the grid applying the filter to the grid directly, however it is not possible filter using non visible columns, so I tried to apply a filter the grid adding filter expressions in the ClientDataSource but nothing happens.
For example
    var datasource = $find('MyClientDataSource');
    datasource.get_filterExpressions().add({ fieldName: "MyField", value: "MyValue", operator:Telerik.Web.UI.ClientDataSource.FilterOperator.EqualTo });
    tableView.rebind();

This code doesnt work. It is possible do this kind of filtering?

[Ricardo]

Sorry, I posted in the wrong forum