registerRequiresPostBack

[xue]

Currently, if a control wants to use postback functionality, it has to use the following lines, sometimes with a few inline javascript code (such as Event.stop(e);),

$options = $this->getAutoPostBackOptions();
$scripts = $page->getClientScript();
$postback = $scripts->getPostBackEventReference($this,'',$options,false);
$scripts->registerClientEvent($this, "click", $postback);

I suggest we eliminate the inline javascript code and simplify the above lines into the following line only,

$this->getPage()->registerRequiresPostBack($this->getPostBackOptions());

To do so, TPostBackOptions need a few more properties, including EventTarget, EventParameter, and EventName.

[wei]

This has been changed to

$this->getPage()->getClientScript()->registerPostBackControl($this);

registerPostBackControl(TControl $control, $namespace="Prado.WebUI") {

//assume all postback enabled control has getPostBackOptions (may be define an interface) $options = $control->getPostBackOptions();

}

[wei]

Also, make getPostBackOptions return array instead of TPostBackOptions unless the later are used else where.