CallbackMessage

• Package: MyToolkit
• Platforms: All (PCL)
• Subclasses:
  • TextMessage

A message base class with a callback to provide a message result.

Send and react to a message

The following code snippets show how to send a callback message and process its response. The standard way is to call the Messenger's SendAsync() method and process the returned result (the method may also throw an exception when the callback message fails):

var message = new TextMessage("Message", "Title", MessageButton.YesNo);
var result = await Messenger.Default.SendAsync(message);
if (result.Result == MessageResult.Yes)
{
    SampleProperty = "Foo";
}

Or awaiting the callback message's task:

var message = new TextMessage("Message", "Title", MessageButton.YesNo);
Messenger.Default.Send(message);
var result = await message.Task;

Or registering a success callback:

var message = new TextMessage("Message", "Title", MessageButton.YesNo);
message.SuccessCallback = (success, result) => {
    // TODO: Check result
}
Messenger.Send(message);