Which events are raised when a form is showned after it was hiding (vb.net)

In my vb.net project, I navigate between forms. I have a main form in which I can display new forms and modify some information in them.

When I closed these new forms, the main form, previously hidden, is displayed by the form.show() method and should consider these modifications.

In order to do that I need to know which event(s) is(are) raised when a form is shown by the form.show() method.

I already try to use the form.show event but it is only raised when the form is firstly showned at the start.