protected function setupGrid(Grid $grid)
{
$grid->addColumnText('name', 'Name')->setSortable()->setFilterText()->setSuggestion();
$grid->addColumnEmail('email', 'Email')->setSortable()->setFilterText()->setSuggestion();
$grid->addColumnText('role', 'Role')->setSortable()->setFilterText()->setSuggestion();
$grid->addActionHref('update', 'Update')->setIcon('pencil');
$grid->addActionEvent('delete', 'Delete', $this->delete)->setIcon('trash-o')->setConfirm(function ($item) {
return "Are you sure you want to delete {$item->name}?";
});
}