SerialPort.Open() Exception

[Christian Havel]

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

 

[Michael Nemtsev [MVP]]

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>

 

[Christian Havel]

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

 

[Ben Voigt [C++ MVP]]

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

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.

 

[Christian Havel]

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

 

[Ben Voigt [C++ MVP]]

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"

"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.

 

[Christian Havel]

Hi Ben,

thanks for your help again. I wait on the users feedback.
Christian

 

[Christian Havel]

Hi Ben,

your are fantastic

The user really tried to start the app from a network folder.

Now it works.
Thanks a lot.
Christian

 

[Christian Havel]

Hi Michael,

the reason was, that the user started the app from a network folder => peng.

Christian

 

[Chris Dunaway]

Hi Michael,

the reason was, that the user started the app from a network folder => peng.

Christian

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