Delegate MessageHandler<TRecipient, TMessage>

Namespace

CommunityToolkit.Mvvm.Messaging

Assembly

CommunityToolkit.Mvvm.dll

A delegate used to represent actions to invoke when a message is received. The recipient is given as an input argument to allow message registrations to avoid creating closures: if an instance method on a recipient needs to be invoked it is possible to just cast the recipient to the right type and then access the local method from that instance.

public delegate void MessageHandler<in TRecipient, in TMessage>(TRecipient recipient, TMessage message) where TRecipient : class where TMessage : class

Parameters

recipient TRecipient

The recipient that is receiving the message.

message TMessage

The message being received.

Type Parameters

TRecipient

The type of recipient for the message.

TMessage

The type of message to receive.

Constructors

MessageHandler(object, nint)

public MessageHandler(object @object, nint method)

Parameters

object object

method nint

Methods

BeginInvoke(TRecipient, TMessage, AsyncCallback, object)

public virtual IAsyncResult BeginInvoke(TRecipient recipient, TMessage message, AsyncCallback callback, object @object)

Parameters

recipient TRecipient

message TMessage

callback AsyncCallback

object object

Returns

IAsyncResult

EndInvoke(IAsyncResult)

public virtual void EndInvoke(IAsyncResult result)

Parameters

result IAsyncResult

Invoke(TRecipient, TMessage)

public virtual void Invoke(TRecipient recipient, TMessage message)

Parameters

recipient TRecipient

message TMessage