ViewEvent

API reference › yii › base › ViewEvent

class	`yii\base\ViewEvent`
Extends	`Event` » `BaseObject`
Implements	`Configurable`
Since	2.0
Source	`framework/base/ViewEvent.php`

ViewEvent represents events triggered by the View component.

Properties

Property	Type	Description	Defined by
`$data`	`mixed`	The data that is passed to `Component::on()` when attaching an event handler. Default: `null`.	`Event`
`$handled`	`bool`	Whether the event is handled. Default: `false`.	`Event`
`$isValid`	`bool`	Whether to continue rendering the view file. Default: `true`.	`ViewEvent`
`$name`	`string`	The event name. Default: `null`.	`Event`
`$output`	`string`	The rendering result of `View::renderFile()`. Default: `null`.	`ViewEvent`
`$params`	`array`	The parameter array passed to the `View::render()` method. Default: `null`.	`ViewEvent`
`$sender`	`object\|null`	The sender of this event. Default: `null`.	`Event`
`$viewFile`	`string`	The view file being rendered. Default: `null`.	`ViewEvent`

Method	Description	Defined by
`__construct()`	Constructor.	`BaseObject`
`__call()`	Calls the named method which is not a class method.	`BaseObject`
`__get()`	Returns the value of an object property.	`BaseObject`
`__isset()`	Checks if a property is set, i.e. defined and not null.	`BaseObject`
`__set()`	Sets value of an object property.	`BaseObject`
`__unset()`	Sets an object property to null.	`BaseObject`
`canGetProperty()`	Returns a value indicating whether a property can be read.	`BaseObject`
`canSetProperty()`	Returns a value indicating whether a property can be set.	`BaseObject`
`className()` static	Returns the fully qualified name of this class.	`BaseObject`
`hasHandlers()` static	Returns a value indicating whether there is any handler attached to the specified class-level event.	`Event`
`hasMethod()`	Returns a value indicating whether a method is defined.	`BaseObject`
`hasProperty()`	Returns a value indicating whether a property is defined.	`BaseObject`
`init()`	Initializes the object.	`BaseObject`
`off()` static	Detaches an event handler from a class-level event.	`Event`
`offAll()` static	Detaches all registered class-level event handlers.	`Event`
`on()` static	Attaches an event handler to a class-level event.	`Event`
`trigger()` static	Triggers a class-level event.	`Event`

public bool $isValid = true

Whether to continue rendering the view file.

Event handlers of View::EVENT_BEFORE_RENDER may set this property to decide whether to continue rendering the current view file.

public string $output = null

The rendering result of View::renderFile().

Event handlers may modify this property and the modified output will be returned by View::renderFile(). This property is only used by View::EVENT_AFTER_RENDER event.