The TCallback provides a basic callback handler that can be invoked from the
client side by running the javascript code obtained from the
{@link TBaseActiveCallbackControl::getJavascript ActiveControl.Javascript} property.
The event {@link onCallback OnCallback} is raised when a callback is requested made.
Example usage:
Click Me!
/**
* Registers the javascript code for initializing the active control.
* @param THtmlWriter the renderer.
*/
public function render($writer)
{
parent::render($writer);
$this->getActiveControl()->registerCallbackClientScript($this->getClientClassName(), $this->getTriggerOptions());
if ($this->getStartTimerOnLoad()) {
$id = $this->getClientID();
$code = "Prado.WebUI.TTimeTriggeredCallback.start('{$id}');";
$cs = $this->getPage()->getClientScript();
$cs->registerEndScript("{$id}:start", $code);
}
}
