I am trying to send list of BarData objects to my FavoritesPage.xaml.cs through MessagingCenter. I have tried

MessagingCenter.Send<BarData>(_favoriteBarsList, "FaveBars");

and it gives me an error, telling me I can't convert the sender from a list to an object. I then tried to use

MessagingCenter.Send<List<BarData>>(_favoriteBarsList, "FaveBars");

and visual studio screams at me LOL! I tried search online how to send a list of objects through MessagingCenter but I can't find anything. Can someone please help?

CodePudding user response：

MessagingCenter.Send Method

Sends a named message with the specified arguments

Parameters

• sender TSender

  • The instance that is sending the message. Typically, this is specified with the this keyword used within the sending object.

• message String

  • The message that will be sent to objects that are listening for the message from instances of type TSender.

• args TArgs

  • The arguments that will be passed to the listener's callback.

Example

MessagingCenter.Send<MainPage,List<BarData>>(
    this, // the context you are on 
    "FaveBars", // the named message
    _favoriteBarsList); // the argument

Where MainPage is the type of this, and List<BarData> is the argument type