pnlMain.Controls.Clear();
ControlAnalyzer1 CA1 = new ControlAnalyzer1();
CA1.TopLevel = false;
CA1.Size = pnlMain.Size;
pnlMain.Controls.Add(CA1);
CA1.Show();
pnlMain.Controls.Clear();
ControlAnalyzer1 CA1 = new ControlAnalyzer1();
CA1.TopLevel = false;
CA1.Size = pnlMain.Size;
pnlMain.Controls.Add(CA1);
CA1.Show();