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Class TCallback

TCallback component class.

The TCallback provides a basic callback handler that can be invoked from the client side by running the javascript code obtained from the TBaseActiveCallbackControl::getJavascript ActiveControl.Javascript property. The event onCallback OnCallback is raised when a callback is requested made.

Example usage:

       <com:TCallback ID="callback1" OnCallback="callback1_Requested" />
<script type="text/javascript">
               function do_callback1()
    {
         var request = <%= $this->callback1->ActiveControl->Javascript %>;
                request.dispatch();
    }
</script>
<div onclick="do_callback1()">Click Me!</div>
TComponent
Extended by TApplicationComponent
Extended by TControl implements IRenderable, IBindable
Extended by TCallback implements ICallbackEventHandler, IActiveControl

Direct known subclasses

TTimeTriggeredCallback, TTriggeredCallback

Indirect known subclasses

TEventTriggeredCallback, TValueTriggeredCallback
Package: System\Web\UI\ActiveControls
Copyright: Copyright © 2005-2014 PradoSoft
License: http://www.pradosoft.com/license/
Author: Wei Zhuo <weizhuo[at]gmail[dot]com>
Since: 3.1
Located at Web/UI/ActiveControls/TCallback.php
Methods summary
public
# __construct( )

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, call this constructor.

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, call this constructor.

Overrides

TControl::__construct()
public TBaseActiveCallbackControl
# getActiveControl( )

Returns

TBaseActiveCallbackControl
standard callback options.

Implementation of

IActiveControl::getActiveControl()
public TCallbackClientSide
# getClientSide( )

Returns

TCallbackClientSide
client side request options.
public
# raiseCallbackEvent( TCallbackEventParameter $param )

Raises the callback event. This method is required by ICallbackEventHandler ICallbackEventHandler interface. If getCausesValidation ActiveControl.CausesValidation is true, it will invoke the page's TPage::validate validate method first. It will raise onCallback OnCallback event. This method is mainly used by framework and control developers.

Raises the callback event. This method is required by ICallbackEventHandler ICallbackEventHandler interface. If getCausesValidation ActiveControl.CausesValidation is true, it will invoke the page's TPage::validate validate method first. It will raise onCallback OnCallback event. This method is mainly used by framework and control developers.

Parameters

$param
TCallbackEventParameter
the event parameter

Implementation of

ICallbackEventHandler::raiseCallbackEvent()
public
# onCallback( TCallbackEventParameter $param )

This method is invoked when a callback is requested. The method raises 'OnCallback' event to fire up the event handlers. If you override this method, be sure to call the parent implementation so that the event handler can be invoked.

This method is invoked when a callback is requested. The method raises 'OnCallback' event to fire up the event handlers. If you override this method, be sure to call the parent implementation so that the event handler can be invoked.

Parameters

$param
TCallbackEventParameter
event parameter to be passed to the event handlers
Methods inherited from TControl
__get(), addParsedObject(), addToPostDataLoader(), addedControl(), applyStyleSheetSkin(), autoBindProperty(), autoDataBindProperties(), bindProperty(), broadcastEvent(), bubbleEvent(), clearChildState(), clearControlState(), clearNamingContainer(), clearViewState(), convertUniqueIdToClientId(), createChildControls(), createControlCollection(), dataBind(), dataBindChildren(), dataBindProperties(), ensureChildControls(), findControl(), findControlsByID(), findControlsByType(), focus(), getAdapter(), getAllowChildControls(), getAttribute(), getAttributes(), getChildControlsCreated(), getClientID(), getControlStage(), getControlState(), getControls(), getCustomData(), getEnableTheming(), getEnableViewState(), getEnabled(), getHasAdapter(), getHasAttributes(), getHasChildInitialized(), getHasControls(), getHasInitialized(), getHasLoaded(), getHasLoadedPostData(), getHasPreRendered(), getID(), getIsSkinApplied(), getNamingContainer(), getPage(), getParent(), getRegisteredObject(), getSkinID(), getSourceTemplateControl(), getTemplateControl(), getUniqueID(), getViewState(), getVisible(), hasAttribute(), initRecursive(), isDescendentOf(), isObjectRegistered(), loadRecursive(), loadState(), loadStateRecursive(), onDataBinding(), onInit(), onLoad(), onPreRender(), onUnload(), preRenderRecursive(), raiseBubbleEvent(), registerObject(), removeAttribute(), removedControl(), render(), renderChildren(), renderControl(), saveState(), saveStateRecursive(), setAdapter(), setAttribute(), setChildControlsCreated(), setControlStage(), setControlState(), setCustomData(), setEnableTheming(), setEnableViewState(), setEnabled(), setID(), setPage(), setSkinID(), setTemplateControl(), setViewState(), setVisible(), trackViewState(), traverseChildControls(), unbindProperty(), unloadRecursive(), unregisterObject()
Methods inherited from TApplicationComponent
getApplication(), getRequest(), getResponse(), getService(), getSession(), getUser(), publishAsset(), publishFilePath()
Methods inherited from TComponent
__call(), __destruct(), __isset(), __set(), __sleep(), __unset(), __wakeup(), asa(), attachBehavior(), attachBehaviors(), attachClassBehavior(), attachEventHandler(), canGetProperty(), canSetProperty(), clearBehaviors(), createdOnTemplate(), detachBehavior(), detachBehaviors(), detachClassBehavior(), detachEventHandler(), disableBehavior(), disableBehaviors(), enableBehavior(), enableBehaviors(), evaluateExpression(), evaluateStatements(), fxAttachClassBehavior(), fxDetachClassBehavior(), getAutoGlobalListen(), getBehaviorsEnabled(), getClassHierarchy(), getEventHandlers(), getListeningToGlobalEvents(), getSubProperty(), hasEvent(), hasEventHandler(), hasProperty(), isa(), listen(), raiseEvent(), setSubProperty(), unlisten()
Constants inherited from TControl
AUTOMATIC_ID_PREFIX, CLIENT_ID_SEPARATOR, CS_CHILD_INITIALIZED, CS_CONSTRUCTED, CS_INITIALIZED, CS_LOADED, CS_PRERENDERED, CS_STATE_LOADED, ID_FORMAT, ID_SEPARATOR, IS_CHILD_CREATED, IS_CREATING_CHILD, IS_DISABLE_THEMING, IS_DISABLE_VIEWSTATE, IS_ID_SET, IS_SKIN_APPLIED, IS_STYLESHEET_APPLIED, RF_ADAPTER, RF_AUTO_BINDINGS, RF_CHILD_STATE, RF_CONTROLS, RF_CONTROLSTATE, RF_DATA_BINDINGS, RF_EVENTS, RF_NAMED_CONTROLS, RF_NAMED_CONTROLS_ID, RF_NAMED_OBJECTS, RF_SKIN_ID
Constants inherited from TComponent
GLOBAL_RAISE_EVENT_LISTENER
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