How do I invoke a method in a userform from parent form?

Question

Learning C#:

I have structure of

form1 (splitcontainer)
  userformLeft (button + sub-panel)
    userformDisplay (loaded into panel in userformLeft)
         


        

Answer 1

Similar problems of communicating between one form and another... whether attaching to "events" of one, or calling / setting values to/from each other. Here are a couple links to questions I've answered to in the past that may help understand the relationships to do so.

Sample 1 with explicit steps to create two forms communicating back/forth to each other

Sample 2 somewhat similar, but attaching to events between forms

Answer 2

yes.. you can do this:

myLong = ((form1)this.parent.parent).mainTimer;