Event handler should go back and do the same work ( Restart the event )

Hi experts,

                        I am Raja from Bangalore. Please find my questions below, I believe you guys will give clear idea/defn for this question

1. I'm working in windows application which is so critical and has many forms , user controls, MDI,etc...

2. The things is that In a form I need to click on the button, which has click event handler,

3. Based on the requirements, I need to process step by step, meanwhile, I need to show one message box which says "Are you sure you want to terminate the process and start from beginning ? "

4. If the user says "Yes", I need to go back and do the work from beginning. The problem is that the click event has many methods, SoHow do I go back and do work  from beginning (first step) and restart the event ?

I hope you guys got my doubt,  Thanks in advance .

Raja.s