How to use eventSender, eventargs?

[Garouda]

Hello,
As this is my first post on this website, hello to everybody from Thailand where I work as a school administrator.
I wrote last year my very first full application in VB6.
Why VB6? Because I have the program and because I am using VBA since Excel supports it, say around 1995. I am now in the process of upgrading to VB.Net, ADO.Net and SQL Server.
I have a form that can be called by three different menu points for three different purposes, and I need to know which menu is at the origin of the call, as the form has to behave accordingly. The solution I was using in VB6 doesn't do the job and I would be very grateful if someone could give me some hints, thanks a lot.

[Garouda]

Well, in the meantime, I think I have the answer to my problem...
in my main form I wrote this code:

Private Sub AddingStudentRecordToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AddingStudentRecordToolStripMenuItem.Click
'I have a feature to track what users do, they can be very 'creative and never do anything wrong. I live in Thailand, the 'Land of Smiles (better known as The Land of Lies)
        WriteToLogFile("menuAddStudent_Click")
'Create an instance of my form
        Dim MyForm As frmAdmission
'Pass an argument
        MyForm = New frmAdmission("Add")
'Show as ususal...
        MyForm.ShowDialog() '1 = modal
'Release memory (I don't know whether I am using the right way...?)
        MyForm.Dispose()
    End Sub

and in my form frmAdmission I wrote this:

Public Sub New(ByVal strToDo As String)
        'Call to MyBase
        MyBase.New()
        ' Windows Form Designer.
        InitializeComponent()
        ' My initialization 
        CoreFrmAdmission(strToDo)
    End Sub

If there is something that needs to be changed, thanks for letting me know it.