Inconsistent Results with RichTextBox ScrollToCaret

Question

I am working with a RichTextBox in C#. It exists on a TabPage. When the TabPage is selected, I aim to populate the RichTextBox, and scroll to the end. I have tried the sligh

Answer 1

I have the same problem, I guess a RTB is almost quite managed by Windows Messages so it sounds a bit like a rabbit warren. I don t know, therefore, the reason for the alternating output (but it has slightly a bug taste). I am concerned with this RTB.Scrolltocaret flickering output but in a VB program. Compliments for your drastic solution: It works perfectly.

Should anyone encounter this anomaly in that programming environment, here's the VB code

Imports System.Runtime.InteropServices
Public Class Form
 _
Public Shared Function SendMessage( _
ByVal hWnd As IntPtr, _
ByVal wMsg As Integer, _
ByVal wParam As IntPtr, _
ByVal lParam As IntPtr) As Integer
End Function
Const WM_SCROLL = 277
Const SB_PAGEBOTTOM = 7
Sub ScrollToBottom(ByVal RTBName As RichTextBox)
   SendMessage(RTBName.Handle, _
               WM_SCROLL, _
               SB_PAGEBOTTOM, _
               IntPtr.Zero)
End Sub 'then call ScrollToBottom instead of ScrollToCaret