[System.Runtime.InteropServices.DllImport("user32.dll")]
static extern int SetScrollPos(IntPtr hWnd, int nBar,
int nPos, bool bRedraw);
SetScrollPos(rt.Handle,1,rt.Lines.Length-1,true);
你试一试,我记不清楚了,当然还可以使用
[System.Runtime.InteropServices.DllImport("user32.dll", EntryPoint="SendMessageA")]
internal static extern int SendMessage(int hwnd, int wMsg, int wParam, int lParam);