Define your own Event and raise it : RaiseEvent « Event « VB.Net Tutorial

1. VB.Net Tutorial
2. Event
3. RaiseEvent

Imports System
  Module Events
  
    Friend WithEvents button As Button
  
    Public Sub Main()
      button = New Button()
      button.Click
    End Sub
    Public Sub Button_OnClick Handles button.OnClick
      Console.WriteLine("Button Clicked")
    End Sub
  End Module
  
  Public Class Button
    Public Event OnClick
  
    Public Sub Click()
      RaiseEvent OnClick()
    End Sub
  End Class