protected function createComponentGrid($name)
 {
     $grid = new Gridito\Grid($this, $name);
     $model = $this->context->doctrineUsersModel;
     $model->addColumnAliases('username', 'credentials.username', 'c.username');
     $grid->setModel($model);
     $grid->setHighlightOrderedColumn(FALSE);
     $grid->setRowClass(function ($iterator, $row) {
         $classes = array();
         $classes[] = $iterator->isOdd() ? 'odd' : 'even';
         if (!$row->active) {
             $classes[] = 'inactive';
         }
         return empty($classes) ? null : implode(' ', $classes);
     });
     // columns
     $grid->addColumn('id', 'ID')->setSortable(true);
     $grid->addColumn('username', 'Username')->setSortable(true)->setCellClass('important');
     $grid->addColumn('name', 'Name')->setSortable(true);
     $grid->addColumn('surname', 'Surname')->setSortable(true);
     $grid->addColumn('mail', 'E-mail', array('renderer' => function ($row) {
         echo Nette\Utils\Html::el('a')->href("mailto:{$row->mail}")->setText($row->mail);
     }, 'sortable' => true));
     $grid->addColumn('active', 'Active')->setSortable(true);
     // buttons
     $grid->addButton('button', 'Button', array('icon' => 'icon-tick', 'handler' => function ($row) use($grid) {
         $grid->flashMessage("Button {$row->name} {$row->surname} pressed.");
         $grid->redirect('this');
     }));
     $grid->addWindowButton('winbtn', 'Window', array('handler' => function ($row) {
         echo "{$row->name} {$row->surname}<br>({$row->mail})";
     }, 'icon' => 'icon-window'));
 }