Open Form inside another Form

Suppose you want to open Form2 inside Form1. Then one way to do it would be as follows:

   Form2 f2 = new Form2();
   f2.TopLevel = false;
   this.Controls.Add(f2);
   f2.Show();

An alternative approach would be to make Form2 an MDI child of Form1. To do this, you first need to set Form1's IsMdiContainer property to true in the Properties Box. The code to open Form2 would then be:

   Form2 f2 = new Form2();
   f2.MdiParent = this;
   f2.Show();