CDataColumn searchable

Hi, is there a way to disable search on a field in CGridView? In other words - can I use CDataColumn to make a column searchable or not?

For example, to disable sorting I do this:

    'columns' => array(


            'name' => 'SmallLogoID',

            'sortable' => false,

            'type' => 'html',

            'value' => '$data->hasSmallLogo ? "<center>". CHtml::image($data->smallLogoUrl, "logo") ."</center>" : ""',



Is there a way to do the same for search?


  'filter' => false,


Thank you Tommy!