Test those things

I have three forms, one is the main form main, which has a panel, initialization time, main display panel in the form form1, and then I want to click a button in form1, form2 main display panel in the middle.

public Form1(Panel p1)

         {

             InitializeComponent();

             p = p1;

         }

 

         private  void  button1_Click( object  sender, EventArgs e)

         {

             Form2 f2 =  new  Form2();

             f2.TopLevel =  false ;

             f2.Parent = p;

             f2.Show();

             this .Close();

         }