CEvent
| 包 | system.base |
|---|---|
| 继承 | class CEvent » CComponent |
| 子类 | CConsoleCommandEvent, CErrorEvent, CExceptionEvent, CMissingTranslationEvent, CModelEvent, COutputEvent |
| 可用自 | 1.0 |
| 源码 | framework/base/CComponent.php |
CEvent is the base class for all event classes.
It encapsulates the parameters associated with an event. The sender property describes who raises the event. And the handled property indicates if the event is handled. If an event handler sets handled to true, those handlers that are not invoked yet will not be invoked anymore.
It encapsulates the parameters associated with an event. The sender property describes who raises the event. And the handled property indicates if the event is handled. If an event handler sets handled to true, those handlers that are not invoked yet will not be invoked anymore.
公共属性
| 属性 | 类型 | 描述 | 被定义在 |
|---|---|---|---|
| handled | boolean | whether the event is handled. | CEvent |
| params | mixed | additional event parameters. | CEvent |
| sender | object | the sender of this event | CEvent |
公共方法
| 方法 | 描述 | 被定义在 |
|---|---|---|
| __call() | Calls the named method which is not a class method. | CComponent |
| __construct() | Constructor. | CEvent |
| __get() | Returns a property value, an event handler list or a behavior based on its name. | CComponent |
| __isset() | Checks if a property value is null. | CComponent |
| __set() | Sets value of a component property. | CComponent |
| __unset() | Sets a component property to be null. | CComponent |
| asa() | Returns the named behavior object. | CComponent |
| attachBehavior() | Attaches a behavior to this component. | CComponent |
| attachBehaviors() | Attaches a list of behaviors to the component. | CComponent |
| attachEventHandler() | Attaches an event handler to an event. | CComponent |
| canGetProperty() | Determines whether a property can be read. | CComponent |
| canSetProperty() | Determines whether a property can be set. | CComponent |
| detachBehavior() | Detaches a behavior from the component. | CComponent |
| detachBehaviors() | Detaches all behaviors from the component. | CComponent |
| detachEventHandler() | Detaches an existing event handler. | CComponent |
| disableBehavior() | Disables an attached behavior. | CComponent |
| disableBehaviors() | Disables all behaviors attached to this component. | CComponent |
| enableBehavior() | Enables an attached behavior. | CComponent |
| enableBehaviors() | Enables all behaviors attached to this component. | CComponent |
| evaluateExpression() | Evaluates a PHP expression or callback under the context of this component. | CComponent |
| getEventHandlers() | Returns the list of attached event handlers for an event. | CComponent |
| hasEvent() | Determines whether an event is defined. | CComponent |
| hasEventHandler() | Checks whether the named event has attached handlers. | CComponent |
| hasProperty() | Determines whether a property is defined. | CComponent |
| raiseEvent() | Raises an event. | CComponent |
属性详情
handled
属性
public boolean $handled;
whether the event is handled. Defaults to false. When a handler sets this true, the rest of the uninvoked event handlers will not be invoked anymore.
params
属性
（自版本 v1.1.7 可用）
public mixed $params;
additional event parameters.
sender
属性
public object $sender;
the sender of this event
方法详情
__construct()
方法
|
public void __construct(mixed $sender=NULL, mixed $params=NULL)
| ||
| $sender | mixed | sender of the event |
| $params | mixed | additional parameters for the event |
源码： framework/base/CComponent.php#665 (显示)
public function __construct($sender=null,$params=null)
{
$this->sender=$sender;
$this->params=$params;
}
Constructor.