Class \Prado\Web\UI\ActiveControls\TActivePanel
TActivePanel is the TPanel active control counterpart.
TActivePanel allows the client-side panel contents to be updated during a callback response using the render method.
Example: Assume $param is an instance of TCallbackEventParameter attached to the OnCallback event of a TCallback with ID "callback1", and "panel1" is the ID of a TActivePanel.
function callback1_requested($sender, $param)
{
$this->panel1->render($param->getNewWriter());
}
Class hierarchy
- \Prado\Web\UI\ActiveControls\TActivePanel implements IActiveControl
-
\Prado\Web\UI\WebControls\TPanel
-
\Prado\Web\UI\WebControls\TWebControl
implements
IStyleable
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\Prado\Web\UI\TControl
implements
IRenderable, IBindable
-
\Prado\TApplicationComponent
-
\Prado\TComponent
Since: 3.1
public
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__construct() : mixed
Creates a new callback control, sets the adapter to
TActiveControlAdapter. If you override this class, be sure to set the
adapter appropriately by, for example, by calling this constructor.
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public
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public
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render(THtmlWriter $writer) : mixed
Renders and replaces the panel's content on the client-side.
When render() is called before the OnPreRender event, such as when render() is called during a callback event handler, the rendering is defered until OnPreRender event is raised. |
protected
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