Pagination for CSqlDataProvider in CGridView - php

Question

I wanna display the retrieved data i.e CSqlDataProvider in CGridView through Pagination..
and I retrieved data from table through CSqlDataProvider and shown in CGridView
but the problem is at Pagination part..
Firstly look at my Controller code..
$count = Yii::app()->db->createCommand('SELECT COUNT(familyid) FROM (' . $sql2 . ') as count_alias')->queryScalar();
$rawData = Yii::app()->db->createCommand($sql2);
$dataProviderRegSum = new CSqlDataProvider($rawData, array(
'keyField' => 'familyid',
// 'pagination'=>false,
/* 'pagination' => array(
'pageSize' => Yii::app()->user->getState( 'pageSize', Yii::app()->params[ 'defaultPageSize' ] ),PaymentTxnDate
), */
'pagination'=>array('pageSize'=>20),
'totalItemCount' => $count,
'sort'=>array(
//'defaultOrder' => 'CreatedDate desc',
'defaultOrder' => 'PaymentTxnDate asc',
'attributes'=>array(
'RegistrationID'=>array(
'asc'=>'familyid',
'desc'=>'familyid DESC',
),
'FirstName'=>array(
'asc'=>'firstname',
'desc'=>'firstname DESC',
),
'LastName'=>array(
'asc'=>'lastname',
'desc'=>'lastname DESC',
),
'CreatedDate'=>array(
'asc'=>'CreatedDate',
'desc'=>'CreatedDate DESC',
),
'EmailedDate'=>array(
'asc'=>'EamiledDate',
'desc'=>'EamiledDate DESC',
),
),),
));
and my view is as
$this->widget('zii.widgets.grid.CGridView', array(
'id'=>'family-record-grid',
'dataProvider'=>$arr[1],
'enableSorting' => false,
//'enablePagination'=>false,
'itemsCssClass'=>'tabchin',
'columns'=>
array(),
));
here $sql2 is my query....
$arr[1] is dataprovider that has sent from controller to view as array...
I have totlaItemCount value
and pageSize is 20
All is right but in the output the first 20 records are displaying its ok
but pagelinks i.e pagenumbers for pagination is not displaying at the bottom..
its been two days stuck for this error ..still didnt get solution
please help me anyone thanks for reading the stuff...
help needed..