How can i RaisePropertyChanged on property change?

Question

Here I added a model to my viewmodel...

public dal.UserAccount User  {
  get
  {
    return _user;
  }
  set
  {
    _user = value;
    RaisePropertyChanged(         


        

Answer 1

You can invoke a property changed event from another class. Not particularly useful if you have all the sources. For closed source it might be. Though I consider it experimental and not production ready.

See this console copy paste example:

using System;
using System.ComponentModel;
using System.Runtime.InteropServices;

namespace ConsoleApp1
{
    public class Program
    {
        static void Main(string[] args)
        {
            var a = new A();
            a.PropertyChanged += A_PropertyChanged;
            var excpl = new Excpl();
            excpl.Victim = a;
            excpl.Ghost.Do();
        }

        private static void A_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            Console.WriteLine("Event triggered");
        }
    }

    [StructLayout(LayoutKind.Explicit)]
    public struct Excpl
    {
        [FieldOffset(0)]
        public A Victim;
        [FieldOffset(0)]
        public C Ghost;
    }

    public class A : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
    }

    public class C : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;

        public void Do()
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(""));
        }
    }
}