YII 类库手册

public function init()
{
    if($this->dataProvider===null)
        throw new CException(Yii::t('zii','The "dataProvider" property cannot be empty.'));

    $this->dataProvider->getData();

    $this->htmlOptions['id']=$this->getId();

    if($this->enableSorting && $this->dataProvider->getSort()===false)
        $this->enableSorting=false;
    if($this->enablePagination && $this->dataProvider->getPagination()===false)
        $this->enablePagination=false;
}

public function registerClientScript()
{
}

public function renderContent()
{
    ob_start();
    echo preg_replace_callback("/{(\w+)}/",array($this,'renderSection'),$this->template);
    ob_end_flush();
}

public function renderEmptyText()
{
    $emptyText=$this->emptyText===null ? Yii::t('zii','No results found.') : $this->emptyText;
    echo CHtml::tag('span', array('class'=>'empty'), $emptyText);
}

abstract public function renderItems();

public function renderKeys()
{
    echo CHtml::openTag('div',array(
        'class'=>'keys',
        'style'=>'display:none',
        'title'=>Yii::app()->getRequest()->getUrl(),
    ));
    foreach($this->dataProvider->getKeys() as $key)
        echo "<span>".CHtml::encode($key)."</span>";
    echo "</div>\n";
}

public function renderPager()
{
    if(!$this->enablePagination)
        return;

    $pager=array();
    $class='CLinkPager';
    if(is_string($this->pager))
        $class=$this->pager;
    else if(is_array($this->pager))
    {
        $pager=$this->pager;
        if(isset($pager['class']))
        {
            $class=$pager['class'];
            unset($pager['class']);
        }
    }
    $pager['pages']=$this->dataProvider->getPagination();

    if($pager['pages']->getPageCount()>1)
    {
        echo '<div class="'.$this->pagerCssClass.'">';
        $this->widget($class,$pager);
        echo '</div>';
    }
    else
        $this->widget($class,$pager);
}

protected function renderSection($matches)
{
    $method='render'.$matches[1];
    if(method_exists($this,$method))
    {
        $this->$method();
        $html=ob_get_contents();
        ob_clean();
        return $html;
    }
    else
        return $matches[0];
}

public function renderSummary()
{
    if(($count=$this->dataProvider->getItemCount())<=0)
        return;

    echo '<div class="'.$this->summaryCssClass.'">';
    if($this->enablePagination)
    {
        if(($summaryText=$this->summaryText)===null)
            $summaryText=Yii::t('zii','Displaying {start}-{end} of {count} result(s).');
        $pagination=$this->dataProvider->getPagination();
        $total=$this->dataProvider->getTotalItemCount();
        $start=$pagination->currentPage*$pagination->pageSize+1;
        $end=$start+$count-1;
        if($end>$total)
        {
            $end=$total;
            $start=$end-$count+1;
        }
        echo strtr($summaryText,array(
            '{start}'=>$start,
            '{end}'=>$end,
            '{count}'=>$total,
            '{page}'=>$pagination->currentPage+1,
            '{pages}'=>$pagination->pageCount,
        ));
    }
    else
    {
        if(($summaryText=$this->summaryText)===null)
            $summaryText=Yii::t('zii','Total {count} result(s).');
        echo strtr($summaryText,array(
            '{count}'=>$count,
            '{start}'=>1,
            '{end}'=>$count,
            '{page}'=>1,
            '{pages}'=>1,
        ));
    }
    echo '</div>';
}

public function run()
{
    $this->registerClientScript();

    echo CHtml::openTag($this->tagName,$this->htmlOptions)."\n";

    $this->renderContent();
    $this->renderKeys();

    echo CHtml::closeTag($this->tagName);
}