c# ,asp.net ,winform窗体停靠在 XtraTabControl上

DevExpress.XtraTab.XtraTabPage page = new DevExpress.XtraTab.XtraTabPage();
//Panel pan = new Panel();
//pan.Dock = DockStyle.Fill;
//Form1 frm1 = new Form1();
//frm1.Visible = true;
//frm1.Dock = DockStyle.Fill;
//frm1.FormBorderStyle = FormBorderStyle.None;
//frm1.Parent = pan;
Form2 frm2 = new Form2();
frm2.TopLevel = false;
frm2.Show();
// frm2.Parent = pan;
//pan.BackColor = Color.Black;

page.Controls.Add(frm2);
//Button btn = new Button();
//page.Controls.Add(btn);
page.Text = "I am new page!";
this.tab2.TabPages.Add(page);