Web Forms :: How To Simulate A Button Click (server-side VB)

I know this is strange, and probably considered bad design. I need to simulate the clicking of an actual button on my asp page. I do not need the button's on_click event sub/code to execute. The issue here is that I want to trigger the ConfirmButtonExtender associated with that button. The ConfirmButtonExtender, by design, executes before the Click event code.

So to be clear, I need to actually "click" the button. What the button does is irrelevant (in fact the button is invisible and has no code). I simply need to trigger the button's ConfirmButtonExtender, not the code behind the actual clicking of the button. Like this..

Protected Sub Button1_Click(.....) Handles Button1.Click
Somehow click invisible_button (not call the Click() event, but actually "click" the button)
End Sub

----Long, convoluted details------

I have fields on a page that require user input. When the user hits submit, I want to display a confirmation dialog with the data of those fields.

To do this, I originally added a ConfirmButtonExtender to the "Submit" button (just a regular ASP button). The problem appears because the ConfirmButtonExtender executes before the OnClick event of the submit button.

During my OnClick even I took the data, populated it into a confirm textbox (which is inside a ModalPopUpExtender). I originally then used the MPE.Show() (still in the onClick event) to display my conformation textbox.

However ,the .Show() function doesn't halt code execution (which is needed, since this is a confirmation dialog). So as a result, I created an invisible button.

This invisible button now has the ConfirmButtonExtender added to it, which will display my MPE/Confirm Dialog. When the user hits "Submit", the click routine is called, all the data is stored and populated, and THEN I want to "click" the invisible button, triggering the ConfirmButtonExtender. That will halt code execution in my original Submit buttons click routine.