Maximize form on both screens (dual screen monitor)

Question

Iam looking for some hint or solution regarding following problem.

I have a .NET 2.0 WinForm dialog which operates in Dual Screen environment. The Working area is se

Answer 1

I know this thread is very old - but I found a very useful and working solution from here after trying and having problems with every solution listed here.

What worked for me was

Rectangle r = new Rectangle();
        foreach (Screen s in Screen.AllScreens)
        {
            if (s != Screen.FromControl(this)) // Blackout only the secondary screens
                r = Rectangle.Union(r, s.Bounds);
        }

        this.Top = r.Top;
        this.Left = r.Left;
        this.Width = r.Width;
        this.Height = r.Height;