Code FOr CroSS THreAD

[justme369]

I would like some code and how to place it in my windows form

This is inside a thread, that is called by button 2

If portdata2.Rows.Item(sum).Cells.Item(1).Value = "" Then
                            portdata2.Rows.Add(1)     ''' i want to add a row to this datagridview
end if

when my code arrives this line it gives me the cross thread error





What i srt of understand its that in
portdata2.rows(1) instead of this i should place a code like invoque something

and in my form i should add a sub where invoque is compare...

i just dont know how


I dont want link to read about how to do it..because i just dont get it...
i have always have trouble with this safe thread calls so i want someone to teach me with lil apples..

This goes here and so on..

PLZZZZZZZZZZZZZZZZ