关于报告服务：如何使用SSRS中的自定义代码解决System.Security.SecurityException？

How do I resolve a System.Security.SecurityException with custom code in SSRS?

我已经创建了一个程序集，并在我的Reporting Services报表中引用了该程序集。我已经在本地测试了报告(可行)，然后将报告上传到了报告服务器(不起作用)。

这是我编写的自定义代码引发的错误。

System.Security.SecurityException:
Request for the permission of type
'System.Security.Permissions.SecurityPermission,
mscorlib, Version=2.0.0.0,
Culture=neutral,
PublicKeyToken=b77a5c561934e089'
failed. at
System.Security.CodeAccessSecurityEngine.CheckNReturnSO(PermissionToken
permToken, CodeAccessPermission
demand, StackCrawlMark& stackMark,
Int32 unrestrictedOverride, Int32
create) at
System.Security.CodeAccessSecurityEngine.Assert(CodeAccessPermission
cap, StackCrawlMark& stackMark) at
System.Security.CodeAccessPermission.Assert()
at [Snipped Method Name] at
ReportExprHostImpl.CustomCodeProxy.[Snipped Method Name] The action that failed was:
Demand The type of the first
permission that failed was:
System.Security.Permissions.SecurityPermission
The Zone of the assembly that failed
was: MyComputer

这个项目是我继承的，我对此并不十分熟悉。尽管我确实有代码(现在)，所以我至少可以使用它：)

我相信失败的代码是这样的：

1 2	Dim fio As System.Security.Permissions.FileIOPermission = New System.Security.Permissions.FileIOPermission(Security.Permissions.PermissionState.Unrestricted) fio.Assert()

但是，这种东西也无处不在：

1	Private Declare Function CryptHashData Lib"advapi32.dll" (ByVal hhash As Integer, ByVal pbData As String, ByVal dwDataLen As Integer, ByVal dwFlags As Integer) As Integer

我可以看到这两种报表服务都不是开箱即用的内容。

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<system.web>

<trust level="Full"/>

</system.web>

在web.config

中尝试

这是我解决问题的方法：