How to RemoveHandler a Delegate from other form

Hi every one
i have two forms
Form1 and Form2
in form2 i have a event

Public Class Form2

    Private Sub Form2_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        MsgBox("This is form2")
    End Sub
End Class

now i want to removehandler Form2_Load before call it

i found this code for get load delegate

Dim FRM2 As Form = New Form2
      Dim assem As [Assembly] = [Assembly].GetExecutingAssembly()
      Dim tExForm As Type = assem.GetType("WindowsApplication2.Form2")
      Dim exFormAsObj As Object = _
          Activator.CreateInstance(tExForm)
      Dim evClick As EventInfo = tExForm.GetEvent("Load")
      Dim tDelegate As Type = evClick.EventHandlerType

      Dim handler As New DynamicMethod( _
         "", _
         Nothing, _
         GetDelegateParameterTypes(tDelegate), _
         GetType(Form1) _
     )
      Dim ilgen As ILGenerator = handler.GetILGenerator()

      Dim showParameters As Type() = {GetType(String)}
      Dim simpleShow As MethodInfo = _
          GetType(MessageBox).GetMethod("Show", showParameters)

      ilgen.Emit(OpCodes.Ldstr, _
          "This event handler was constructed at run time.")
      ilgen.Emit(OpCodes.Call, simpleShow)
      ilgen.Emit(OpCodes.Pop)
      ilgen.Emit(OpCodes.Ret)
      Dim dEmitted As [Delegate] = handler.CreateDelegate(tDelegate)

but when removehandler not works on that

RemoveHandler FRM2.Load, dEmitted

       FRM2.ShowDialog()

i try this code but it's not work too

evClick.RemoveEventHandler(FRM2, dEmitted)
FRM2.ShowDialog()

Where is my problem?
thank you.

Tags: C#, Visual Basic, Visual Studio