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.NET Forum / Languages / C# / March 2008SerialPort.Open() Exception
Hi, I have a problem calling serialPort.Open(). The customer receives a message like: Die Anwendung hat einen Vorgang versucht, der von der Sicherheitsrichtlinie nicht zugelassen ist ... ...verwenden Sie das Microsoft .NET Framework-Konfigurationstool. Fehler bei der Anforderung des Berechtigungstyps System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 I found the .NET Framework configurationstool. What do I have to configure? Christian Hello Christian, see there http://episteme.arstechnica.com/eve/forums/a/tpc/f/6330927813/m/888002201831 --- WBR, Michael Nemtsev [.NET/C# MVP] :: blog: http://spaces.live.com/laflour "The greatest danger for most of us is not that our aim is too high and we miss it, but that it is too low and we reach it" (c) Michelangelo CH> System.Security.Permissions.SecurityPermission, mscorlib, CH> Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 CH> Hi Michael, thanks for your help! We try it. Well, do not you think that it is necessary to set some options in the .NET configuration tool? Christian > Hello Christian, > [quoted text clipped - 10 lines] > CH> Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 > CH> Hi Michael, the reason was, that the user started the app from a network folder => peng. Christian > Hello Christian, > [quoted text clipped - 10 lines] > CH> Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 > CH> On Mar 12, 3:04 am, Christian Havel <ChristianHa...@discussions.microsoft.com> wrote: > Hi Michael, > [quoted text clipped - 16 lines] > > CH> Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 > > CH> Please be careful with using the SerialPort under VS2008. It appears to be very buggy and could result in a locked up serial port which can't be unlocked. See this: http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2635314&SiteID=1 Chris > Hi, > [quoted text clipped - 12 lines] > I found the .NET Framework configurationstool. What do I have to > configure? Christian Looks like the application was started from a network drive. You can either enable full trust for that network location, or copy the executables locally. Hi Ben, thanks for your help. I got a screenshot and have following informations: (Translated from german): "The type from the first permission on which a error occurs: System.Security.Permission.SecurityPermission The zone of the assembly on which a error occured: Intranet" Any more idea? Christian > > Hi, > > [quoted text clipped - 16 lines] > enable full trust for that network location, or copy the executables > locally. > Hi Ben, > [quoted text clipped - 5 lines] > System.Security.Permission.SecurityPermission > The zone of the assembly on which a error occured: Intranet" "Intranet" instead of "Local Computer" appearing here confirms my guess. .NET security prevents applications running over the network from accessing local hardware, like the serial port. The easiest thing to do is install the application locally. > Any more idea? > Christian [quoted text clipped - 19 lines] >> can either enable full trust for that network location, or copy the >> executables locally. Hi Ben, thanks for your help again. I wait on the users feedback. Christian > > Hi Ben, > > [quoted text clipped - 34 lines] > >> can either enable full trust for that network location, or copy the > >> executables locally. Hi Ben, your are fantastic :-) The user really tried to start the app from a network folder. Now it works. Thanks a lot. Christian > > Hi Ben, > > [quoted text clipped - 34 lines] > >> can either enable full trust for that network location, or copy the > >> executables locally.
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