public static FolderBrowserDialogEx ComputerBrowser()
{
FolderBrowserDialogEx x = new FolderBrowserDialogEx();
// avoid MBRO comppiler warning when passing _rootFolderLocation as a ref:
x.BecomeComputerBrowser();
return(x);
}
/// <summary>
/// Calling this method is identical to calling the ShowDialog method of the provided
/// FolderBrowserDialog, except that an attempt will be made to scroll the Tree View
/// to make the currently selected folder visible in the dialog window.
/// </summary>
/// <param name="dlg"></param>
/// <param name="parent"></param>
/// <returns></returns>
public static DialogResult ShowFolderBrowser(FolderBrowserDialogEx dlg, IWin32Window parent = null)
{
DialogResult result = DialogResult.Cancel;
int retries = 10;
using (Timer t = new Timer())
{
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, new IntPtr(TVGN_CARET), IntPtr.Zero);
if (item != IntPtr.Zero)
{
SendMessage(hwndTV, TVM_ENSUREVISIBLE, IntPtr.Zero, item);
retries = 0;
t.Stop();
}
}
}
}
}
else
{
//
// We failed to find the Tree View control.
//
// As a fall back (and this is an UberUgly hack), we will send
// some fake keystrokes to the application in an attempt to force
// the Tree View to scroll to the selected item.
//
t.Stop();
SendKeys.Send("{TAB}{TAB}{DOWN}{DOWN}{UP}{UP}");
}
};
t.Interval = 10;
t.Start();
result = dlg.ShowDialog(parent);
}
return(result);
}
DialogResult showDefaultDialogEx(IWin32Window owner)
{
using (var fbd = new FolderBrowserDialogEx()) {
fbd.Reset();
fbd.Description = this.Title;
fbd.SelectedPath = this.DirectoryPath;
fbd.ShowEditBox = true;
fbd.NewStyle = true;
fbd.ShowNewFolderButton = true;
fbd.DontIncludeNetworkFoldersBelowDomainLevel = true;
fbd.ShowFullPathInEditBox = false;
var result = FolderBrowserLauncher.ShowFolderBrowser(fbd, owner);
//var result = fbd.ShowDialog(owner);
DirectoryPath = fbd.SelectedPath;
return(result);
}
}
