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[.net] FolderBrowserDialog not working

General and Gameplay Programming Programming

Started by Jnz86 July 18, 2005 09:41 AM

5 comments, last by Jnz86 18 years, 9 months ago

Jnz86

228

Author

July 18, 2005 09:41 AM

Hi, i use the following code to ask user for folder:


FolderBrowserDialog* fb = new FolderBrowserDialog();
System::Windows::Forms::DialogResult res = fb-&gt;ShowDialog();

if (fb != DialogResult::OK)
   return;

And this is what i get:

Well, as you can see it doesn't work. Maybe someone had similar problem ? And btw, i checked the msdn... [Edited by - Jnz86 on July 19, 2005 8:43:58 AM]

jods

367

July 18, 2005 02:02 PM

I remember seeing this before. It's a known bug.

Unfortuneately for you, I don't remember the whereabouts, but I'm sure you'll find the answer quite easily with google.

Regards,
jods

ernow

732

July 18, 2005 02:07 PM

The Folderbrowser dialog is a very special dialog for two reasons:
1. It needs special security permissions. So if your code is not running under Full trust (use caspol.exe -rsg to find out about that) you might need to assign the file/folderbrowser permission to your app.
2. It is an ActiveX (COM) control that needs the [STAThread] attribute on the main thread. (Did you remove that???)

Cheers

Jnz86

228

Author

July 19, 2005 02:05 AM

Quote:
2. It is an ActiveX (COM) control that needs the [STAThread] attribute on the main thread. (Did you remove that???)

my WinMain looks like this:

System::Threading::Thread::CurrentThread->ApartmentState = System::Threading::ApartmentState::STA;Application::Run(new ptIDE::FormIDE());

so if i understood well the STAThread attribute is OK, right? (Sorry I am new to .NET)

Quote:
1. It needs special security permissions. So if your code is not running under Full trust (use caspol.exe -rsg to find out about that) you might need to assign the file/folderbrowser permission to your app.

I need to check that...

ernow

732

July 19, 2005 03:12 AM

Your STA attribute seems to be ok.

Are you running from a (mapped) network drive a share or something like that?

Cheers

Jnz86

228

Author

July 19, 2005 05:16 AM

Quote:
Are you running from a (mapped) network drive a share or something like that?

No, i am running locally on my PC.

Jnz86

228

Author

July 21, 2005 04:25 AM

Quote:
1. It needs special security permissions. So if your code is not running under Full trust (use caspol.exe -rsg to find out about that) you might need to assign the file/folderbrowser permission to your app.

Tell me more about it, maybe it's the problem...
Also, maybe you know some kind of link, or smthing which can help me :)

[.net] FolderBrowserDialog not working

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[.net] FolderBrowserDialog not working

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