form student result

<div>
<table id="form-lesson-achievement" class="table_list_view mytable">
    <tr>
        <th style="width:10%"><input type="checkbox" class="check_all" checked="true" /> All</th>
        <th style="width:20%"><?php echo Yii::t('students','_REG_NUMBER_');?></th>
        <th style="width:50%"><?php echo Yii::t('students','_STUDENT_NAME_');?></th>
        <th style="width:20%"><?php echo Yii::t('achievement','_RESULT_VALUE_');?></th>
    </tr>
<?php
$i = 0;
foreach( $dataProvider as $data)
{
    echo '<tr><td>';
    echo '<input type="checkbox" checked="true" class="chkbox" /></td><td>';
    echo '<div>'.$data->student_id.'</div>';
    echo CHtml::activeHiddenField($data,'student_id',array('name'=>'Achievement[student_id]['.$i.']'));
    echo '</td><td>'.$data->student->name.'</td><td>'.CHtml::activeTextField($model,'result_value',array('name'=>'Achievement[result]['.$i.']','size'=>'5', 'maxlength'=>'5')).'</td></tr>';
    ++$i;
}
?>
</table>
</div>
<div class="row">
    <?php echo CHtml::submitButton('Save');?>
</div>