Linq to SQL - 安全異常

Question

我有一個簡單的網站，它使用C＃和Linq to SQL讀取對數據庫的寫入。一切工作正常，在我的本地盒子，但現在，我已經安裝在我的主機環境，我正在嘗試寫入數據庫時​​，「安全異常」，閱讀是好的。我已經聯繫了託管公司，他們說他們已經在服務器端配置了他們所能做的一切。這是LINQ查詢的例子，並且拋出

LINQ查詢除外：

public void LogLoginAttempt(string Username, string Password, bool isValidated) 
{ 
    try 
    { 
     Data.ProfileLoginLog pll = new Library.Data.ProfileLoginLog(); 

     pll.Username = Username; 
     pll.Password = Password; 
     pll.isValidated = isValidated; 
     pll.CreateDate = DateTime.Now; 

     dc.ProfileLoginLogs.InsertOnSubmit(pll); 
     dc.SubmitChanges(); 
    } 
    catch (Exception ex) 
    { 
    ErrorLog e = new ErrorLog(); 
    e.LogFatalError(ex); 
    } 
} 

例外：

Server Error in '/' Application. 
-------------------------------------------------------------------------------- 

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: Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. 

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: 


[SecurityException: Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.] 
    System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Assembly asm, PermissionSet granted, PermissionSet refused, RuntimeMethodHandle rmh, SecurityAction action, Object demand, IPermission permThatFailed) +150 
    System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Object assemblyOrString, PermissionSet granted, PermissionSet refused, RuntimeMethodHandle rmh, SecurityAction action, Object demand, IPermission permThatFailed) +100 
    System.Security.CodeAccessSecurityEngine.CheckSetHelper(PermissionSet grants, PermissionSet refused, PermissionSet demands, RuntimeMethodHandle rmh, Object assemblyOrString, SecurityAction action, Boolean throwException) +284 
    System.Security.PermissionSetTriple.CheckSetDemand(PermissionSet demandSet, PermissionSet& alteredDemandset, RuntimeMethodHandle rmh) +69 
    System.Security.PermissionListSet.CheckSetDemand(PermissionSet pset, RuntimeMethodHandle rmh) +150 
    System.Security.PermissionListSet.DemandFlagsOrGrantSet(Int32 flags, PermissionSet grantSet) +30 
    System.Threading.CompressedStack.DemandFlagsOrGrantSet(Int32 flags, PermissionSet grantSet) +40 
    System.Security.CodeAccessSecurityEngine.ReflectionTargetDemandHelper(Int32 permission, PermissionSet targetGrant, CompressedStack securityContext) +123 
    System.Security.CodeAccessSecurityEngine.ReflectionTargetDemandHelper(Int32 permission, PermissionSet targetGrant, Resolver accessContext) +41 

-------------------------------------------------------------------------------- 
Version Information: Microsoft .NET Framework Version:2.0.50727.3082; ASP.NET Version:2.0.50727.3082 

Answer 1

的錯誤消息對我來說最重要的部分是：

應用程序試圖執行安全策略不允許的操作。 ...

索取型「System.Security.Permissions.ReflectionPermission的許可，...

所以安全問題沒有通過驗證對數據庫造成的（直接）。相反，某些代碼需要使用Reflection才能正確運行，並且系統的安全策略不允許這樣做。

要授予此應用程序所需的權限，請聯繫您的系統管理員或更改配置文件中應用程序的信任級別。