ublaboo / datagrid

	 * @param string|callable $title

	 * @return static

	 */

	public function setTitle($title)

	{

		if (!is_string($title) && !is_callable($title) && !is_null($title)) {

			throw new DataGridException(

				'Action title has to be either string or callback, that will return string'

			);

		}

		$this->title = $title;

		return $this;

	}

	/**

	 * @param string|callable $class

	 * @return static

	 */

	public function setClass($class)

	{

		if (!is_string($class) && !is_callable($class) && !is_null($class)) {

			throw new DataGridException(

				'Action class has to be either string or callback, that will return string'

			);

		}

		$this->class = $class;

		return $this;

	}

	/**

	 * @param string|callable $icon

	 * @return static|callable

	 */

	public function setIcon($icon)

	{

		if (!is_string($icon) && !is_callable($icon) && !is_null($icon)) {

			throw new DataGridException(

				'Action icon has to be either string or callback, that will return string'

			);

		}

		$this->icon = $icon;

		return $this;

	}

	/**

	 * @param string $column

	 * @return static

	 */

	public function setConfirm($message, $column = NULL)

	{

		if (!is_string($message) && !is_callable($message) && !is_null($message)) {

			throw new DataGridException(

				'Action message has to be either string or callback, that will return string'

			);

		}

		$this->confirm = [$message, $column];

		return $this;

	}

	/**