C # FolderBrowserDialog Scroll to Selected Path folder selection box The initial position does not scroll to the default folder

     Public Static classFolderbrowserlauncher {/// <summary>        ///Using the title text to look for the Top Level dialog window is fragile. ///in particular, this would fail in non-english applications. /// </summary>        Const string_toplevelsearchstring ="Browse for Folder"; /// <summary>        ///these should is more robust. We find the correct child controls in the dialog///by using the GetDlgItem method, rather than the FindWindow (Ex) method,///because the dialog item IDs should be constant. /// </summary>        Const int_dlgitembrowsecontrol =0; Const int_dlgitemtreeview = -; [DllImport ("user32.dll", SetLastError =true)]        Static externIntPtr FindWindow (stringLpclassname,stringlpwindowname); [DllImport ("user32.dll")]        Static externIntPtr GetDlgItem (IntPtr hdlg,intNiddlgitem); [DllImport ("user32.dll", CharSet =CharSet.Auto)]Static externIntPtr SendMessage (IntPtr hWnd, UInt32 Msg, IntPtr WParam, IntPtr lParam); /// <summary>        ///Some of the messages that the Tree View control would respond to/// </summary>        Private Const intTv_first =0x1100; Private Const intTvm_selectitem = (Tv_first + One); Private Const intTvm_getnextitem = (Tv_first +Ten); Private Const intTvm_getitem = (Tv_first + A); Private Const intTvm_ensurevisible = (Tv_first + -); /// <summary>        ///Constants used to identity specific items in the Tree View control/// </summary>        Private Const intTvgn_root =0x0; Private Const intTvgn_next =0x1; Private Const intTvgn_child =0x4; Private Const intTvgn_firstvisible =0x5; Private Const intTvgn_nextvisible =0x6; Private Const intTvgn_caret =0x9; /// <summary>        ///calling this method was identical to calling the ShowDialog method of the provided///FolderBrowserDialog, except that an attempt'll be made to scroll the Tree View///The currently selected folder visible in the dialog window. /// </summary>        /// <param name= "Dlg" ></param>        /// <param name= "parent" ></param>        /// <returns></returns>         Public StaticDialogResult Showfolderbrowser (FolderBrowserDialog dlg, IWin32Window parent =NULL) {DialogResult result=DialogResult.Cancel; intRetries =Ten; using(Timer t =NewTimer ()) {T.tick+ = (s, a) = =                {                    if(Retries >0)                    {                        --retries; INTPTR Hwnddlg= FindWindow ((string)NULL, _toplevelsearchstring); if(Hwnddlg! =IntPtr.Zero) {IntPtr Hwndfolderctrl=GetDlgItem (Hwnddlg, _dlgitembrowsecontrol); if(Hwndfolderctrl! =IntPtr.Zero) {IntPtr Hwndtv=GetDlgItem (Hwndfolderctrl, _dlgitemtreeview); if(Hwndtv! =IntPtr.Zero) {INTPTR Item= SendMessage (Hwndtv, (UINT) Tvm_getnextitem,NewIntPtr (Tvgn_caret), IntPtr.Zero); if(Item! =IntPtr.Zero) {SendMessage (HWNDTV, Tvm_ensu                                        Revisible, IntPtr.Zero, item); Retries=0;                                    T.stop ();                    }                                }                            }                        }                    } Else                    {                        //                        //We failed to find the Tree View control. //                        //as a fall back (and this was an uberugly hack), we'll send//some fake keystrokes to the application in a attempt to force//The Tree View to scroll to the selected item. //T.stop (); Sendkeys.send ("{Tab}{tab}{down}{down}{up}{up}");                }                }; T.interval=Ten;                T.start (); Result=dlg.            ShowDialog (parent); }            returnresult; }    }

C # FolderBrowserDialog Scroll to Selected Path folder selection box The initial position does not scroll to the default folder