Class MessageEvent

Namespace

CSharpToJavaScript.APIs.JS

Assembly

CSharpToJavaScript.dll

The MessageEvent interface represents a message received by a target object.

[Value("MessageEvent")]
public class MessageEvent : Event

Inheritance

object

Event

MessageEvent

Inherited Members

Event.NONE

Event.CAPTURING_PHASE

Event.AT_TARGET

Event.BUBBLING_PHASE

Event.ComposedPath()

Event.StopPropagation()

Event.StopImmediatePropagation()

Event.PreventDefault()

Event.InitEvent(string, bool, bool)

Event.Type

Event.Target

Event.SrcElement

Event.CurrentTarget

Event.EventPhase

Event.CancelBubble

Event.Bubbles

Event.Cancelable

Event.ReturnValue

Event.DefaultPrevented

Event.Composed

Event.IsTrusted

Event.TimeStamp

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Remarks

This is used to represent messages in:

The action triggered by this event is defined in a function set as the event handler for the relevant message event.

-ExtendableMessageEvent — similar to this interface but used in interfaces that needs to give more flexibility to authors.

See also on MDN

Constructors

MessageEvent()

public MessageEvent()

MessageEvent(string, MessageEventInit)

The MessageEvent() constructor creates a new MessageEvent object.

public MessageEvent(string type, MessageEventInit eventInitDict = null)

Parameters

type string

eventInitDict MessageEventInit

Remarks

-ExtendableMessageEvent — similar to this interface but used in interfaces that needs to give more flexibility to authors.

See also on MDN

Properties

Data

The data read-only property of the
MessageEvent interface represents the data sent by the message emitter.

[Value("data")]
public dynamic Data { get; }

Property Value

dynamic

The data sent by the message emitter; this can be any data type, depending on what originated this event.

Remarks

-ExtendableMessageEvent — similar to this interface but used in
interfaces that needs to give more flexibility to authors.

See also on MDN

LastEventId

The lastEventId read-only property of the
MessageEvent interface is a string representing a
unique ID for the event.

[Value("lastEventId")]
public string LastEventId { get; }

Property Value

string

A string representing the ID.

Remarks

-ExtendableMessageEvent — similar to this interface but used in
interfaces that needs to give more flexibility to authors.

See also on MDN

Origin

The origin read-only property of the
MessageEvent interface is a string representing the
origin of the message emitter.

[Value("origin")]
public string Origin { get; }

Property Value

string

A string representing the origin.

Remarks

-ExtendableMessageEvent — similar to this interface but used in
interfaces that needs to give more flexibility to authors.

See also on MDN

Ports

The ports read-only property of the
MessageEvent interface is an array of MessagePort objects
containing all MessagePort objects sent with the message, in order.

[Value("ports")]
public MessagePort[] Ports { get; }

Property Value

MessagePort[]

An array of MessagePort objects.

Remarks

-ExtendableMessageEvent — similar to this interface but used in
interfaces that needs to give more flexibility to authors.

See also on MDN

Source

The source read-only property of the
MessageEvent interface is a MessageEventSource (which can be
a {{glossary("WindowProxy")}}, MessagePort, or
ServiceWorker object) representing the message emitter.

[Value("source")]
public Union94? Source { get; }

Property Value

Union94?

a MessageEventSource (which can be a WindowProxy,
MessagePort, or ServiceWorker object) representing the
message emitter.

Remarks

-ExtendableMessageEvent — similar to this interface but used in
interfaces that needs to give more flexibility to authors.

See also on MDN

Methods

InitMessageEvent(string, bool, bool, dynamic, string, string, Union94?, List<MessagePort>)

[Value("initMessageEvent")]
public GlobalObject.Undefined InitMessageEvent(string type, bool bubbles = false, bool cancelable = false, dynamic data = null, string origin = null, string lastEventId = null, Union94? source = null, List<MessagePort> ports = null)

Parameters

type string

bubbles bool

cancelable bool

data dynamic

origin string

lastEventId string

source Union94?

ports List<MessagePort>

Returns

GlobalObject.Undefined