Control for picking a folder?

[Mike Litzkow]

I want my user to pick a folder where my code will "walk"
the subtrees and process many files. The FileDialog,
OpenFileDialog, and related classes seem to only want to
pick one or more files (not folders). I wonder if it is
possible to add event handlers or override methods in one
of these classes to accomplish this task. I tried
intalling an event handler for the "FileOk" event
in "OpenFileDialog". The docs say that this event will
be fired when the user clicks on the "Open" or "Save"
button, but my handler never gets called. Has anybody
else dealt with this problem?
--- mike

 

[Herfried K. Wagner [MVP]]

I want my user to pick a folder where my code will "walk"
the subtrees and process many files.

..NET 1.1:

'System.Windows.Forms.FolderBrowserDialog'

Note that there is a bug in Fx 1.1 that causes a really bad error when
using a path which is longer than ~128 characters. This occurs on
unicode systems only. Use the P/Invoke solutions mentioned below
instead.

..NET 1.0:

<http://www.codeproject.com/cs/miscctrl/folderbrowser.asp>
<http://support.microsoft.com/?kbid=306285>
<http://www.gotdotnet.com/team/vb/FolderBrowser.exe>
<http://groups.google.com/groups?selm=q0JKzDbmCHA.2144@cpmsftngxa09>

--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>

<http://www.plig.net/nnq/nquote.html>

 

[Thomas W. Brown]

-----Original Message-----
I want my user to pick a folder where my code will "walk"
the subtrees and process many files. The FileDialog,
OpenFileDialog, and related classes seem to only want to
pick one or more files (not folders). I wonder if it is
possible to add event handlers or override methods in one
of these classes to accomplish this task. I tried
intalling an event handler for the "FileOk" event
in "OpenFileDialog". The docs say that this event will
be fired when the user clicks on the "Open" or "Save"
button, but my handler never gets called. Has anybody
else dealt with this problem?
--- mike
.

Check out the FolderBrowserDialog object from the Windows
Forms toolbox. While I haven't yet had the need to use
it, I'm betting that it is exactly what you're looking for.

-- TB

 

[Herfried K. Wagner [MVP]]

I had searched for something to do this before 1.1 was
out, and not found anything. I not been aware of the
FolderBrowserDialog class being added to 1.1. This is a
good thing, but too bad about the bug. I was able to

Only FYI: That's not the only bug in the class...

--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>

<http://www.plig.net/nnq/nquote.html>