public function renderHeaderCell()
	{
		if ($this->grid->json) {
			ob_start();
			$this->renderHeaderCellContent();
			$content = ob_get_contents();
			ob_end_clean();

			return array('id' => $this->id, 'content' => $content);
		}
		parent::renderHeaderCell();
		return array();
	}
public function renderHeaderCell()
	{
		if ($this->grid->json) {
			ob_start();
			$this->renderHeaderCellContent();
			$content = ob_get_contents();
			ob_end_clean();

			return array('id' => $this->id, 'content' => $content);
		}
		parent::renderHeaderCell();
		return array();
	}
public function renderHeaderCell ( ) { if ( $ this -> grid -> json ) { ob_start ( ) ; $ this -> renderHeaderCellContent ( ) ; $ content = ob_get_contents ( ) ; ob_end_clean ( ) ; return array ( 'id' => $ this -> id , 'content' => $ content ) ; } parent :: renderHeaderCell ( ) ; return array ( ) ; }
Renders|returns the header cell.

@return array
Renders|returns the header cell .