public function getDataCellContent($row)
	{
		$data=$this->grid->dataProvider->data[$row];
		if($this->urlExpression!==null)
			$url=$this->evaluateExpression($this->urlExpression,array('data'=>$data,'row'=>$row));
		else
			$url=$this->url;
		if($this->labelExpression!==null)
			$label=$this->evaluateExpression($this->labelExpression,array('data'=>$data,'row'=>$row));
		else
			$label=$this->label;
		$options=$this->linkHtmlOptions;
		if(is_string($this->imageUrl))
			return CHtml::link(CHtml::image($this->imageUrl,$label),$url,$options);
		else
			return CHtml::link($label,$url,$options);
	}