How to bring a win form to front?

Question

I have a winform that drives me crazy... When I open it, it opens and goes behind the main form from which I open it. I tried calling: BringToFront(), Focus(), Activacte() and still nothing.... Here is my code:

MyForm frm = new MyForm();
frm.WindowState = FormWindowState.Maximized;
frm.StartPosition = FormStartPosition.CenterParent;
frm.Show();
frm.BringToFront();
frm.Activate();

I know that the main form has the TopMost property set to true, but I also have this code that works just fine:

Form frmLog = new Form();
LogViewer logControl = new LogViewer();
frmLog.Controls.Add(logControl);
logControl.Dock = DockStyle.Fill;
frmLog.WindowState = FormWindowState.Maximized;
frmLog.StartPosition = FormStartPosition.CenterParent;
frmLog.Text = "Log Viewer";
frmLog.Show();

So that is way it drives me crazy...

Answer 1

You have to set your main form as owner for frm by using Form.Show(IWin32Window) method.

So your code should look like

frm.Show(this);

Answer 2

You have to pass the instance of the main form to the Show method of the form you want to show.

MyForm frm = new MyForm();
frm.Show(this);

Of course this works if you are instanciating the second form inside the main form class (so you can use the this keyword.