How to prevent value changed events from firing on form initialization in .NET?

Question

Consider a simple .NET form with a couple of radio buttons and a checkbox.

Each of the radio buttons has a CheckedChanged handler setup that performs some action bas

Answer 1

The easy solution is to declare an initializing variable:

  Private Initializing as boolean = True

  Private Sub rb_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rbNuevos.CheckedChanged, RbDesaparecidos.CheckedChanged, RbModificados.CheckedChanged, RbNoDesap.CheckedChanged, RbDesHoy.CheckedChanged, RbChT.CheckedChanged
      if Initializing then return

      'Your Code    
  End Sub

  Public Sub New()

       ' Llamada necesaria para el Diseñador de Windows Forms.
       InitializeComponent()    
       ' Agregue cualquier inicialización después de la llamada a InitializeComponent().

       initializing = false
  end sub

Most sophisticated: Remove the "handles" from the method, and use AddHandler on the new method.

  Public Sub New()

       ' Llamada necesaria para el Diseñador de Windows Forms.
       InitializeComponent()    
       ' Agregue cualquier inicialización después de la llamada a InitializeComponent().

       AddHandler RbChT.CheckedChanged, AddressOf rb_CheckedChanged
  end sub