Click on layout link and change columns visibility/order in dialog.
Layout
Displaying 91-100 of 100 result(s).
 NameAgeLogin DateLink 
Dickson, Britanney E.292012-03-26View Update Delete
Norman, Imelda S.692012-03-26View Update Delete
Wolf, Bethany J.442012-03-26View Update Delete
Mcmahon, Kessie F.632012-03-26View Update Delete
William, Quincy Y.452012-03-26View Update Delete
Blackburn, Rhona C.242012-03-26View Update Delete
Clay, Ashely J.532012-03-26View Update Delete
Mckenzie, Desirae Z.352012-03-26View Update Delete
Guerra, Phoebe V.452012-03-26View Update Delete
Branch, Abdul Q.402012-03-26View Update Delete
View:
//layout dialog
$dialog = $this->widget('ext.ecolumns.EColumnsDialog', array(
       'options'=>array(
            'title' => 'Layout settings',
            'autoOpen' => false,
            'show' =>  'fade',
            'hide' =>  'fade',
        ),
       'htmlOptions' => array('style' => 'display: none'), //disable flush of dialog content
       'ecolumns' => array(
            'gridId' => 'grid1', //id of related grid
            'storage' => 'db',  //where to store settings: 'db', 'session', 'cookie'
            'fixedLeft' => array('CCheckBoxColumn'), //fix checkbox to the left side 
            'model' => $dataProvider->model, //model is used to get attribute labels
            'columns' => array(
               'name',
               'age',
                array(
                  'name' => 'login_date',
                  'header' => 'Login Date',
                ), 
                array(
                 'class'=>'CLinkColumn',
                 'header' => 'Link',
                ),
                array(
                 'class'=>'CButtonColumn',
                ),
                array(
                 'class'=>'CCheckBoxColumn',
                ),               
           ),
       )
));

//grid
$this->widget('zii.widgets.grid.CGridView', array(
       'id' => 'grid1',
       'dataProvider' => $dataProvider,
       'template' => $dialog->link()."{summary}\n{items}\n{pager}",
       'columns' => $dialog->columns(),
));