do not have a method or closure named "search".

Hello Friends,

My model name announcement.php


<?php


/**

 * This is the model class for table "announcement".

 *

 * The followings are the available columns in table 'announcement':

 * @property integer $id

 * @property string $title

 * @property string $description

 * @property string $status

 * @property string $ipaddress

 * @property integer $created_by

 * @property integer $updated_by

 * @property string $created_dt

 * @property string $updated_dt

 */

class Announcement extends CActiveRecord

{

	/**

	 * Returns the static model of the specified AR class.

	 * @return Announcement the static model class

	 */

	public static function model($className=__CLASS__)

	{

		return parent::model($className);

	}


	/**

	 * @return string the associated database table name

	 */

	public function tableName()

	{

		return 'announcement';

	}


	/**

	 * @return array validation rules for model attributes.

	 */

	public function rules()

	{

		// NOTE: you should only define rules for those attributes that

		// will receive user inputs.

		return array(

			//array('title, ipaddress, created_dt, updated_dt', 'required'),

			array('title,description ipaddress', 'required','on'=>'add,update'),

			array('created_by, updated_by', 'numerical', 'integerOnly'=>true),

			array('title, ipaddress', 'length', 'max'=>255),

			array('status', 'length', 'max'=><img src='http://www.yiiframework.com/forum/public/style_emoticons/default/cool.gif' class='bbc_emoticon' alt='8)' />,

			array('description', 'safe'),

			// The following rule is used by search().

			// Please remove those attributes that should not be searched.

			array('id, title, description, status, ipaddress, created_by, updated_by, created_dt, updated_dt', 'safe', 'on'=>'search'),

		);

	}


	/**

	 * @return array relational rules.

	 */

	public function relations()

	{

		// NOTE: you may need to adjust the relation name and the related

		// class name for the relations automatically generated below.

		return array(

		);

	}


	/**

	 * @return array customized attribute labels (name=>label)

	 */

	public function attributeLabels()

	{

		return array(

			'id' => 'ID',

			'title' => 'Title',

			'description' => 'Description',

			'status' => 'Status',

			'ipaddress' => 'Ipaddress',

			'created_by' => 'Created By',

			'updated_by' => 'Updated By',

			'created_dt' => 'Created Dt',

			'updated_dt' => 'Updated Dt',

		);

	}


	/**

	 * Retrieves a list of models based on the current search/filter conditions.

	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.

	 */

	public function search()

	{

		// Warning: Please modify the following code to remove attributes that

		// should not be searched.


		$criteria=new CDbCriteria;


		$criteria->compare('id',$this->id);

		$criteria->compare('title',$this->title,true);

		$criteria->compare('description',$this->description,true);

		$criteria->compare('status',$this->status,true);

		$criteria->compare('ipaddress',$this->ipaddress,true);

		$criteria->compare('created_by',$this->created_by);

		$criteria->compare('updated_by',$this->updated_by);

		$criteria->compare('created_dt',$this->created_dt,true);

		$criteria->compare('updated_dt',$this->updated_dt,true);


		return new CActiveDataProvider($this, array(

			'criteria'=>$criteria,

			'sort'=>array(

						'attributes'=>array(

							'id',

							'title',

							array(

								'name'	=>'description',

								'type'	=>'raw',

								'htmlOptions'=>array('style'=>'width:50%'),

								),

								'ipaddress',

							), 

							),

			'pagination'=>array(

                       	'pageSize'=> Yii::app()->user->getState('pageSize',Yii::app()->params['defaultPageSize']),

                    ),

		));

	}

}

my view file (list.php)


<?php

/**	 

 * Action  : Listing of the Announcement

 * @param  : 

 * @return :  	 

 * @author : 

*/

$this->breadcrumbs=array(

	'Announcement'=>array('index'),

	'Manage',

);

$this->menu=array(

	array('label'=>'List Announcement', 'url'=>array('index')),

	array('label'=>'Create Announcement', 'url'=>array('create')),

);

?>

<h1>Manage Announcement</h1> 

<?php 


	/**	 Add, Edit, Delete message display here */	

	$this->renderPartial('//layouts/_message');

	echo CHtml::link("Add Announcement<br>",array('announcement/add'),array('id'=>'manage-inline'));

	$this->widget('application.extensions.fancybox.EFancyBox', array(

	            'target'=>'a#manage-inline',

	            'config'=>array(

	                    'scrolling' => 'no',

	                    'titleShow' => false,

						'width' => '400px',

	                ),

	            )

	        );

?>

<?php 

	$pageSize=Yii::app()->user->getState('pageSize',Yii::app()->params['defaultPageSize']);

	

	$this->widget('zii.widgets.grid.CGridView', 

	array(

			'id'=>'yii-grid',

			'dataProvider'=>$model->search(),

			'filter'=>$model,

			'ajaxUpdate'=>true,

			'afterAjaxUpdate'=>"function(id,data){ $('a#manage-inline').fancybox({'width':'400px','scrolling':'no','titleShow':false}); }",

			'columns'=>array(

								'id',

								'title',

								'description',

								'ipaddress',

						array(

								'class'=>'CButtonColumn',

	 							'viewButtonUrl'=>'Yii::app()->createUrl("announcement/view", array("id" =>  $data["id"]))','viewButtonOptions'=>array('id'=>'manage-inline'),

								'updateButtonUrl'=>'Yii::app()->createUrl("announcement/update", array("id" =>  $data["id"]))','updateButtonOptions'=>array('id'=>'manage-inline'),

								'deleteButtonUrl' => 'Yii::app()->createUrl("announcement/delete" , array("id" =>  $data["id"]))',

								'header'=>CHtml::dropDownList('pageSize',$pageSize,

								array(10=>10,20=>20,50=>50,100=>100),

								array('onchange'=>"$.fn.yiiGridView.update('yii-grid',{ data:{pageSize: $(this).val() }})",)),),

							),

		)); 

?>

<

Here I got the error like

plz help me soon.

thanks in advance

Please include your controller/action code