C#•2y ago

Issue with FolderBrowserDialog in console application

Hey, when I start my application via Visual Studio everything works, but as soon as I start the console application directly, I get the following error:

System.MissingMethodException: Method not found: 'Void System.Security.Permissions.RegistryPermission..ctor(System.Security.Permissions.PermissionState)'

System.MissingMethodException: Method not found: 'Void System.Security.Permissions.RegistryPermission..ctor(System.Security.Permissions.PermissionState)'

Code:

public static void OpenFileDialog()
{
            FolderBrowserDialog fbd = new FolderBrowserDialog();
            fbd.ShowNewFolderButton = true;
            if (fbd.ShowDialog() == DialogResult.OK)
            {
                foreach (var path in Directory.GetFiles(fbd.SelectedPath))
                {
                    Console.WriteLine(path);
                }
            }
        }

public static void OpenFileDialog()
{
            FolderBrowserDialog fbd = new FolderBrowserDialog();
            fbd.ShowNewFolderButton = true;
            if (fbd.ShowDialog() == DialogResult.OK)
            {
                foreach (var path in Directory.GetFiles(fbd.SelectedPath))
                {
                    Console.WriteLine(path);
                }
            }
        }

20 Replies

phaseshift•2y ago

console runtime does not have access to ui stuff. If you want UI, don't pick a console project

MarvinOP•2y ago

but why then via visual studio?

phaseshift•2y ago

wat

MarvinOP•2y ago

if i start the application with visual studio stuff (image), then it works.

MarvinOP•2y ago

MarvinOP•2y ago

and yup, it have the STAThread Attribute

phaseshift•2y ago

Oh. Are you copying your app to another machine or something?

MarvinOP•2y ago

later then, not yet so yes, it is planned that others can use the programme. currently, however, it is only local to me. if that's what you meant

phaseshift•2y ago

Yes. What SDK/.NET version are you using ?

MarvinOP•2y ago

netcoreapp3.1

phaseshift•2y ago

https://github.com/dotnet/runtime/issues/28299

GitHub

MissingMethodException for System.Security.Permissions.SecurityPerm...

Looks like the issue I opened in https://github.com/dotnet/coreclr/issues/21742 probably belongs here. New in .NET Core 3.0 Preview 1 compared to 2.2 is a MissingMethodException for Void System.Sec...

phaseshift•2y ago

Seems relevant

MarvinOP•2y ago

old stuff i think

MarvinOP•2y ago