Event from other class - vb.net

Question

I have to "catch" an event from another class but I can't.
Project contains two forms: Form1 and Form2 and class params. Form 1 contain one button which have to change property value in class props. And Form2 have to know when props raises event.
Here is situation:
''Form1 code
Public Class Form1
Dim p As New params
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Form2.Show()
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
p.demo = "mytry"
End Sub
End Class
''Form2 code
Public Class Form2
Private WithEvents p As params
Private Sub pChanged(ByVal propertyName As String) Handles p.PropChanged
MessageBox.Show(propertyName)
End Sub
End Class
''Class params code
Public Class params
Public Event PropChanged(ByVal propName As String)
Private _demo As String
Public Property demo() As String
Get
Return _demo
End Get
Set(ByVal value As String)
_demo = value
RaiseEvent PropChanged("demo")
End Set
End Property
End Class
Problem is that sub pChanged in Form2 is never fired and have to be fired when property "demo" raises an event PropChanged.
How to get this working?

Answer 1

You have two params variables and you are handling the wrong in Form2 if you change the property in Form1. You could handle the event in Form2 and raise it again to handle it in Form1.
One here:
Public Class Form1
Dim p As New params
and one here
Public Class Form2
Private WithEvents p As params
Note that you have to use WithEvents p As New params also in Form1 if you want to handle the event there.