Delete Checkcolumn Tbgridview

TbGridView have a column that has a checkbox and a button to remove the selected. Made in a grid functioned normally, I went to the other grid and takes no further action. The button is as if no action. Follows the code. thank you

Botão




<?php

                echo CHtml::htmlButton('Remover Selecionado(s)', array(

                    'type' => 'button',

                    'ajax' => array(

                        'type' => 'POST',

                        'url' => Yii::app()->createUrl('admin/photos/delete'),

                        'dataType' => 'json',

                        'beforeSend' => 'function(){

                        var id = $.fn.yiiGridView.getSelection(\'admin-grid-photos\'); 

                        if(id == \'\'){

                            alert(\'Selecione pelo menos 1 item\');

                            return false;

                        }

                        if(!confirm(\'' . Yii::t('zii', 'Você tem  certeza que deseja excluir?') . '\')) return false;

                    }',

                        'success' => "function(data){\$.fn.yiiGridView.update('admin-grid-photos');}",

                        'data' => "js:{ids:$.fn.yiiGridView.getSelection('admin-grid-photos')}"

                    )

                ));

                ?>



Grid




 <?php

                    $this->widget('bootstrap.widgets.TbGridView', array(

                        'type' => 'condensed striped',

                        'id' => 'admin-grid-photos',

                        'dataProvider' => $provider,

                        'columns' => array(

                            array(

                                'class' => 'CCheckBoxColumn',

                            ),

                            array(

                                'type' => 'html',

                                'name' => 'Imagem',

                                'value' => 'CHtml::image($data->thumbnail_url, "", array("width"=>125))',

                            ),

                            array(

                                'name' => 'Data cadastro',

                                'value' => 'Yii::app()->dateFormatter->formatDateTime($data->cadastro, "medium", null)'

                            )

                        ),

                    ));

                    ?>




'beforeSend' => 'function(){

                        var id = $.fn.yiiGridView.getSelection(\'admin-grid-photos\'); 

                        if(id == \'\'){

                            alert(\'Selecione pelo menos 1 item\');

                            return false;

                        }

                        if(!confirm(\'' . Yii::t('zii', 'Você tem  certeza que deseja excluir?') . '\')) return false;

                    }',

This function should return true i guess. Add a


return true;

at the very end of this function and see what happens.