title: How to Load Form inside panel other form in win app
body: <p>I Create a Windows Forms application with C#.</p>
  
  <p>I have a general Form and a panel on it.</p>
  
  <p>I show subForm into this panel with code:</p>
  
  <pre><code>SubForm objForm= SubForm.InstanceForm();
  this.IsMdiContainer = true;
  objForm.TopLevel = false;
  pnlSubSystem.Controls.Add(objForm);
  objForm.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
  objForm.Dock = DockStyle.Fill;
  objForm.Show();
  </code></pre>
  
  <p>now I want to show other form on subForm of this panel, But I dont know how to do it.</p>