Comment exécuter System.Web.DataVisualization en moyenne confiance à Rackspace sur les sites de Cloud

Question

J'ai des problèmes pour obtenir Microsoft Charting:

System.Web.DataVisualization.dll

Pour travailler dans la confiance moyenne sur Windows Server 2008 sur IIS 7

En utilisant .Net 3.5

Dans un environnement à Rackspace sur leurs sites Cloud.

Je reçois ce message d'erreur de l'environnement d'hébergement Rackspace:

 Security Exception

 Description: The application attempted to perform an operation not allowed by the security policy.  To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. 

 Exception Details: System.Security.SecurityException: That assembly does not allow partially trusted callers.

J'ai installé un site dans l'environnement de la mise en scène locale pour tester la confiance moyenne, et je reçois ce message:

 Required permissions cannot be acquired.

 Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

 Exception Details: System.Security.Policy.PolicyException: Required permissions cannot be acquired.

 Source Error: 

 An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

 Stack Trace: 

 [PolicyException: Required permissions cannot be acquired.]
   System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Boolean checkExecutionPermission) +10239406
   System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Int32& securitySpecialFlags, Boolean checkExecutionPermission) +97

 [FileLoadException: Could not load file or assembly 'System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)]
 System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0
 System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +416
 System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +166
 System.Reflection.Assembly.Load(String assemblyString) +35
 System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +190

 [ConfigurationErrorsException: Could not load file or assembly 'System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)]
 System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +11204104
 System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +388
 System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +232
 System.Web.Configuration.AssemblyInfo.get_AssemblyInternal() +48
 System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +210
 System.Web.Compilation.BuildProvidersCompiler..ctor(VirtualPath configPath, Boolean supportLocalization, String outputAssemblyName) +76
 System.Web.Compilation.ApplicationBuildProvider.GetGlobalAsaxBuildResult(Boolean isPrecompiledApp) +283
 System.Web.Compilation.BuildManager.CompileGlobalAsax() +50
 System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +676

 [HttpException (0x80004005): Could not load file or assembly 'System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)]
 System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() +76
 System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +1012
 System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) +1025

 [HttpException (0x80004005): Could not load file or assembly 'System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)]
 System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11297830
 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +88
 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4336948

 Version Information: Microsoft .NET Framework Version:2.0.50727.4200; ASP.NET Version:2.0.50727.4016

Rackspace sera pas installez le package MSChart.exe sur les serveurs Sites de Cloud Rackspace.

Answer 1

MS Charting pour .Net 3.5 doit être installé à l'aide du MSI.

Pour obtenir de travailler en confiance moyenne où vous ne pouvez pas l'installer, essayez d'utiliser .Net 4.0 où il fait partie du Framework .Net.