C#

// Get a new Stack trace, starting from this frame
StackTrace trace = new StackTrace(0);
 
string currentMethodName = trace.GetFrame(0).GetMethod().Name;
 
string callingMethod = trace.GetFrame(1).GetMethod().Name;

richTextBox1.SelectionStart = richTextBox1.Text.Length;
richTextBox1.SelectionLength = 0;
richTextBox1.ScrollToCaret();

richTextBox1.SelectionStart = richTextBox1.Text.Length;
richTextBox1.SelectionLength = 0;
richTextBox1.Focus();
richTextBox1.ScrollToCaret();

public class RichTextBox : System.Windows.Forms.RichTextBox
{
  void ScrollToEnd()
  {
    const int msg = 0x400 + 222;
    int h = Height;
    int y = Font.Height * Lines.Length - h;
    Point point = new Point(0, y);
    SendMessage(Handle, msg, 0, ref point);
  }

  [DllImport("user32.dll")]
  extern static int SendMessage(IntPtr hwnd, int id, int res, ref Point pos);

  protected override void OnSizeChanged(EventArgs e)
  {
    ScrollToEnd();
    base.OnSizeChanged (e);
  }

  //this scrolls the text to the last line when ever text is changed.
  protected override void OnTextChanged(EventArgs e)
  {
    ScrollToEnd();
    base.OnTextChanged (e);
  }
}