This is the simplest method I can think of right now.

In ASCX, let's examine C# (just because the solution I am copying from is
C#).

//Create Event handler
public event EventHandler RegisterCustomer;

//Send event
//Sender and e can be nulled or resent from the event handler
//on the ASCX
RegisterCustomer(sender, e);

In ASPX, I have VB (yes, the solution was built by two people, part C#, part
VB)

Protected Sub RegisterUnit1_BubbleUpRegister(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles Register.RegisterCustomer

'Code for registration

End Sub

In C#, you would wire the event handler instead using the delegate wiring
method. I do not have a bit of code I can quickly copy.

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