VitNX_ScrollBase.OnPreviewKeyDown Method

protected override void OnPreviewKeyDown(PreviewKeyDownEventArgs e)
 {
     base.OnPreviewKeyDown(e);
 
     // Allows arrow keys to trigger OnKeyPress
     switch (e.KeyCode)
     {
         case Keys.Up:
         case Keys.Down:
         case Keys.Left:
         case Keys.Right:
             e.IsInputKey = true;
             break;
     }
 }