SecurityPermissionFlag 枚举

为安全权限对象指定访问标志。

此枚举有一个 FlagsAttribute 属性，允许其成员值按位组合。

**命名空间:**System.Security.Permissions
**程序集:**mscorlib（在 mscorlib.dll 中）

语法

声明
<SerializableAttribute> _
<FlagsAttribute> _
<ComVisibleAttribute(True)> _
Public Enumeration SecurityPermissionFlag
用法
Dim instance As SecurityPermissionFlag

[SerializableAttribute] 
[FlagsAttribute] 
[ComVisibleAttribute(true)] 
public enum SecurityPermissionFlag

[SerializableAttribute] 
[FlagsAttribute] 
[ComVisibleAttribute(true)] 
public enum class SecurityPermissionFlag

/** @attribute SerializableAttribute() */ 
/** @attribute FlagsAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
public enum SecurityPermissionFlag

SerializableAttribute 
FlagsAttribute 
ComVisibleAttribute(true) 
public enum SecurityPermissionFlag

成员

	成员名称	说明
	AllFlags	权限的无限制状态。
	Assertion	断言此代码的所有调用方均有该操作所需的权限的能力。
	BindingRedirects	在应用程序配置文件中执行显式绑定重定向所需的权限。其中包括对某些 .NET Framework 程序集的重定向，这些程序集和 .NET Framework 外的其他程序集都已经被统一。
	ControlAppDomain	能够创建和操控 AppDomain。
	ControlDomainPolicy	能够指定域策略。
	ControlEvidence	能够提供证据，包括能够更改公共语言运行库所提供的证据。  这是一项功能非常强大的权限，应只授予高度信任的代码。
	ControlPolicy	能够查看并修改策略。  这是一项功能非常强大的权限，应只授予高度信任的代码。
	ControlPrincipal	能够操控用户对象。
	ControlThread	能够在线程上使用某些高级操作。
	Execution	使代码运行的权限。如果没有此权限，则托管代码不会执行。  当以动态方式用于 Deny、Assert 和 PermitOnly 等堆栈修饰符时，此标志无效。
	Infrastructure	用于将代码插入公共语言运行库结构的权限，如添加 Remoting Context Sink、Envoy Sink 和 Dynamic Sink。
	NoFlags	无安全性访问。
	RemotingConfiguration	用于配置远程类型和信道的权限。
	SerializationFormatter	能够提供序列化服务。由序列化格式化程序使用。
	SkipVerification	能够跳过此程序集内对代码的验证。如果授予此权限，则可以运行无法验证的代码。  这是一项功能非常强大的权限，应只授予高度信任的代码。 当以动态方式用于 Deny、Assert 和 PermitOnly 等堆栈修饰符时，此标志无效。
	UnmanagedCode	能够调用非托管代码。  由于非托管代码潜在地允许回避其他权限，所以此权限是非常危险的权限，应只授予高度信任的代码。它用于使用 PInvoke 或 COM Interop 调用本机代码等的应用程序。

备注

此枚举有一个允许其成员值按位组合的 FlagsAttribute 属性。

SecurityPermission 使用此枚举。

警告

这些标志中的很多标志功能非常强大，应只授予高度信任的代码。

示例

下面的代码示例演示如何使用 SecurityPermissionFlag 枚举拒绝和要求安全权限。

' This sample demonstrates the use of the SecurityPermissionAttribute.
Imports System
Imports System.Security.Permissions
Imports System.Security
Imports Microsoft.VisualBasic



Class [MyClass]

    Public Shared Sub PermissionDemo()
        Try
            DenySecurityPermissions()
            DenyAllSecurityPermissions()
            DoNotDenySecurityPermissions()
        Catch e As Exception
            Console.WriteLine(e.Message.ToString())
        End Try
    End Sub 'PermissionDemo




    ' This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
    ' Set the Assertion,UnmanagedCode, ControlAppDomain, ControlDomainPolicy, ontrolEvidence, 
    ' ControlPolicy, ControlPrincipal, ControlThread, Execution, Flags, Infrastructure, 
    ' RemotingConfiguration, SerializationFormatter, and SkipVerification properties.
    <SecurityPermissionAttribute(SecurityAction.Deny, Assertion:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlAppDomain:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlDomainPolicy:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlEvidence:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlPolicy:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlPrincipal:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlThread:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, Execution:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, Flags:=SecurityPermissionFlag.NoFlags), _
    SecurityPermissionAttribute(SecurityAction.Deny, Infrastructure:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, RemotingConfiguration:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, SerializationFormatter:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, SkipVerification:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, UnmanagedCode:=True)> _
    Public Shared Sub DenySecurityPermissions()
        Console.WriteLine("Executing DenySecurityPermissions.")
        Console.WriteLine("Denied all permissions individually.")
        TestSecurityPermissions()
    End Sub 'DenySecurityPermissions


    ' This method demonstrates the use of SecurityPermissionFlag.AllFlags to deny all security permissions.
    <SecurityPermissionAttribute(SecurityAction.Deny, Flags:=SecurityPermissionFlag.AllFlags)> _
    Public Shared Sub DenyAllSecurityPermissions()
        Console.WriteLine(ControlChars.Lf & "Executing DenyAllSecurityPermissions.")
        Console.WriteLine("Denied all permissions using SecurityPermissionFlag.AllFlags.")
        TestSecurityPermissions()
    End Sub 'DenyAllSecurityPermissions


    ' This method demonstrates the effect of not denying security permissions.
    Public Shared Sub DoNotDenySecurityPermissions()
        Console.WriteLine(ControlChars.Lf & "Executing DoNotDenySecurityPermissions.")
        Console.WriteLine("No permissions have been denied.")
        DemandSecurityPermissions()
    End Sub 'DoNotDenySecurityPermissions


    Public Shared Sub TestSecurityPermissions()
        Console.WriteLine(ControlChars.Lf & "Executing TestSecurityPermissions." & ControlChars.Lf)
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Assertion)
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion")
            ' This demand should cause an exception.
            sp.Demand()
            ' The TestFailed method is called if an exception is not thrown.
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Assertion failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlAppDomain)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlAppDomain failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlEvidence)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlEvidence failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPolicy)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPolicy failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPrincipal)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPrincipal failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlThread)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlThread failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Execution)
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Execution failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Infrastructure)
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Infrastructure failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.RemotingConfiguration)
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.SerializationFormatter)
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.SerializationFormatter failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.SkipVerification)
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.SkipVerification failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.UnmanagedCode)
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode")
            ' This demand should cause an exception.
            sp.Demand()
            ' The TestFailed method is called if an exception is not thrown.
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.UnmanagedCode failed: " & e.Message))
        End Try
    End Sub 'TestSecurityPermissions


    Public Shared Sub TestFailed()
        Console.WriteLine("In TestFailed method.")
        Console.WriteLine("Throwing an exception.")
        Throw New Exception()
    End Sub 'TestFailed

    Public Shared Sub DemandSecurityPermissions()
        Console.WriteLine(ControlChars.Lf & "Executing DemandSecurityPermissions." & ControlChars.Lf)
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Assertion)
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Assertion failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlAppDomain)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlAppDomain failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlEvidence)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlEvidence failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPolicy)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPolicy failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPrincipal)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPrincipal failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlThread)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlThread failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Execution)
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Execution failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Infrastructure)
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Infrastructure failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.RemotingConfiguration)
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.SerializationFormatter)
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.SerializationFormatter failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.SkipVerification)
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.SkipVerification failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.UnmanagedCode)
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.UnmanagedCode failed: " & e.Message))
        End Try
    End Sub 'DemandSecurityPermissions

    Overloads Shared Sub Main(ByVal args() As String)
        PermissionDemo()
    End Sub 'Main
End Class '[MyClass] 

// This sample demonstrates the use of the SecurityPermissionAttribute.

using System;
using System.Security.Permissions;
using System.Security;


class MyClass
{
    public static void PermissionDemo()
    {
        try
        {
            DenySecurityPermissions();
            DenyAllSecurityPermissions();
            DoNotDenySecurityPermissions();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message.ToString());
        }



    }

    // This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
    // Set the Assertion property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Assertion = true)]
        // Set the ControlAppDomain property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlAppDomain = true)]
        // Set the ControlDomainPolicy property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlDomainPolicy = true)]
        // Set the ControlEvidence property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlEvidence = true)]
        // Set the ControlPolicy property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlPolicy = true)]
        // Set the ControlPrincipal property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlPrincipal = true)]
        // Set the ControlThread property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlThread = true)]
        // Set the Execution property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Execution = true)]
        // Set the Flags property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Flags = SecurityPermissionFlag.NoFlags)]
        // Set the Infrastructure property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Infrastructure = true)]
        // Set the RemotingConfiguration property.
    [SecurityPermissionAttribute(SecurityAction.Deny, RemotingConfiguration = true)]
        // Set the SerializationFormatter property.
    [SecurityPermissionAttribute(SecurityAction.Deny, SerializationFormatter = true)]
        // Set the SkipVerification property.
    [SecurityPermissionAttribute(SecurityAction.Deny, SkipVerification = true)]
        // Set the UnmanagedCode property.
    [SecurityPermissionAttribute(SecurityAction.Deny, UnmanagedCode = true)]

    public static void DenySecurityPermissions()
    {
        Console.WriteLine("Executing DenySecurityPermissions.");
        Console.WriteLine("Denied all permissions individually.");
        TestSecurityPermissions();
    }

    // This method demonstrates the use of SecurityPermissionFlag.AllFlags to deny all security permissions.
    [SecurityPermissionAttribute(SecurityAction.Deny, Flags = SecurityPermissionFlag.AllFlags)]
    public static void DenyAllSecurityPermissions()
    {
        Console.WriteLine("\nExecuting DenyAllSecurityPermissions.");
        Console.WriteLine("Denied all permissions using SecurityPermissionFlag.AllFlags.");
        TestSecurityPermissions();
    }

    // This method demonstrates the effect of not denying security permissions.
    public static void DoNotDenySecurityPermissions()
    {
        Console.WriteLine("\nExecuting DoNotDenySecurityPermissions.");
        Console.WriteLine("No permissions have been denied.");
        DemandSecurityPermissions();
    }

    public static void TestSecurityPermissions()
    {
        Console.WriteLine("\nExecuting TestSecurityPermissions.\n");
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Assertion);
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
            // This demand should cause an exception.
            sp.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlAppDomain);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlEvidence);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPrincipal);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlThread);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Execution);
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Infrastructure);
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.RemotingConfiguration);
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SerializationFormatter);
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SkipVerification);
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode");
            // This demand should cause an exception.
            sp.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode failed: " + e.Message);
        }

    }

    public static void TestFailed()
    {
        Console.WriteLine("In TestFailed method.");
        Console.WriteLine("Throwing an exception.");
        throw new Exception();
    }
    
    public static void DemandSecurityPermissions()
    {
        Console.WriteLine("\nExecuting DemandSecurityPermissions.\n");
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Assertion);
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlAppDomain);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlEvidence);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPrincipal);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlThread);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Execution);
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Infrastructure);
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.RemotingConfiguration);
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SerializationFormatter);
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SkipVerification);
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode failed: " + e.Message);
        }

    }

    static void Main(string[] args)
    {
        PermissionDemo();
    }

}

// This sample demonstrates the use of the SecurityPermissionAttribute.
using namespace System;
using namespace System::Security::Permissions;
using namespace System::Security;
class MyClass
{
public:
   static void PermissionDemo()
   {
      try
      {
         DenySecurityPermissions();
         DenyAllSecurityPermissions();
         DoNotDenySecurityPermissions();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( e->Message );
      }

   }


   // This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
   // Set the Assertion property.
   [SecurityPermissionAttribute(SecurityAction::Deny,Assertion=true)]
   // Set the ControlAppDomain property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlAppDomain=true)]
   // Set the ControlDomainPolicy property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlDomainPolicy=true)]
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlEvidence=true)]
   // Set the ControlEvidence property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlPolicy=true)]
   // Set the ControlPolicy property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlPrincipal=true)]
   // Set the ControlPrincipal property.
   // Set the ControlThread property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlThread=true)]
   // Set the Execution property.
   [SecurityPermissionAttribute(SecurityAction::Deny,Execution=true)]
   // Set the Flags property.
   [SecurityPermissionAttribute(SecurityAction::Deny,Flags=SecurityPermissionFlag::NoFlags)]
   // Set the Infrastructure property.
   [SecurityPermissionAttribute(SecurityAction::Deny,Infrastructure=true)]
   // Set the RemotingConfiguration property.
   [SecurityPermissionAttribute(SecurityAction::Deny,RemotingConfiguration=true)]
   // Set the SerializationFormatter property.
   [SecurityPermissionAttribute(SecurityAction::Deny,SerializationFormatter=true)]
   // Set the SkipVerification property.
   [SecurityPermissionAttribute(SecurityAction::Deny,SkipVerification=true)]
   // Set the UnmanagedCode property.
   [SecurityPermissionAttribute(SecurityAction::Deny,UnmanagedCode=true)]

   static void DenySecurityPermissions()
   {
      Console::WriteLine( "Executing DenySecurityPermissions." );
      Console::WriteLine( "Denied all permissions individually." );
      TestSecurityPermissions();
   }


   // This method demonstrates the use of SecurityPermissionFlag::AllFlags to deny all security permissions.

   [SecurityPermissionAttribute(SecurityAction::Deny,Flags=SecurityPermissionFlag::AllFlags)]
   static void DenyAllSecurityPermissions()
   {
      Console::WriteLine( "\nExecuting DenyAllSecurityPermissions." );
      Console::WriteLine( "Denied all permissions using SecurityPermissionFlag::AllFlags." );
      TestSecurityPermissions();
   }


   // This method demonstrates the effect of not denying security permissions.
   static void DoNotDenySecurityPermissions()
   {
      Console::WriteLine( "\nExecuting DoNotDenySecurityPermissions." );
      Console::WriteLine( "No permissions have been denied." );
      DemandSecurityPermissions();
   }

   static void TestSecurityPermissions()
   {
      Console::WriteLine( "\nExecuting TestSecurityPermissions.\n" );
      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Assertion );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Assertion" );
         
         // This demand should cause an exception.
         sp->Demand();
         
         // The TestFailed method is called if an exception is not thrown.
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Assertion failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlAppDomain );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlAppDomain" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlAppDomain failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlDomainPolicy );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlDomainPolicy" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlDomainPolicy failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlEvidence );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlEvidence" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlEvidence failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPolicy );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPolicy" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPolicy failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPrincipal );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPrincipal" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPrincipal failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlThread );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlThread" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlThread failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Execution );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Execution" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Execution failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Infrastructure );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Infrastructure" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Infrastructure failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::RemotingConfiguration );
         Console::WriteLine( "Demanding SecurityPermissionFlag::RemotingConfiguration" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::RemotingConfiguration failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SerializationFormatter );
         Console::WriteLine( "Demanding SecurityPermissionFlag::SerializationFormatter" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::SerializationFormatter failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SkipVerification );
         Console::WriteLine( "Demanding SecurityPermissionFlag::SkipVerification" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::SkipVerification failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::UnmanagedCode );
         Console::WriteLine( "Demanding SecurityPermissionFlag::UnmanagedCode" );
         
         // This demand should cause an exception.
         sp->Demand();
         
         // The TestFailed method is called if an exception is not thrown.
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::UnmanagedCode failed: {0}", e->Message );
      }

   }

   static void TestFailed()
   {
      Console::WriteLine( "In TestFailed method." );
      Console::WriteLine( "Throwing an exception." );
      throw gcnew Exception;
   }
   
   static void DemandSecurityPermissions()
   {
      Console::WriteLine( "\nExecuting DemandSecurityPermissions.\n" );
      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Assertion );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Assertion" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::Assertion succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Assertion failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlAppDomain );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlAppDomain" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlAppDomain succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlAppDomain failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlDomainPolicy );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlDomainPolicy" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlDomainPolicy succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlDomainPolicy failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlEvidence );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlEvidence" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlEvidence succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlEvidence failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPolicy );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPolicy" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPolicy succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPolicy failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPrincipal );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPrincipal" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPrincipal succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPrincipal failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlThread );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlThread" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlThread succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlThread failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Execution );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Execution" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::Execution succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Execution failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Infrastructure );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Infrastructure" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::Infrastructure succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Infrastructure failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::RemotingConfiguration );
         Console::WriteLine( "Demanding SecurityPermissionFlag::RemotingConfiguration" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::RemotingConfiguration succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::RemotingConfiguration failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SerializationFormatter );
         Console::WriteLine( "Demanding SecurityPermissionFlag::SerializationFormatter" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::SerializationFormatter succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::SerializationFormatter failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SkipVerification );
         Console::WriteLine( "Demanding SecurityPermissionFlag::SkipVerification" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::SkipVerification succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::SkipVerification failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::UnmanagedCode );
         Console::WriteLine( "Demanding SecurityPermissionFlag::UnmanagedCode" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::UnmanagedCode succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::UnmanagedCode failed: {0}", e->Message );
      }

   }

};

int main()
{
   MyClass::PermissionDemo();
}

// This sample demonstrates the use of the SecurityPermissionAttribute.

import System.*;
import System.Security.Permissions.*;
import System.Security.*;

class MyClass
{
    public static void PermissionDemo() 
    {
        try {
            DenySecurityPermissions();
            DenyAllSecurityPermissions();
            DoNotDenySecurityPermissions();
        }
        catch (System.Exception e) {
            Console.WriteLine(e.get_Message().ToString());
        }
    } //PermissionDemo   

    // This method demonstrates the use of the SecurityPermissionAttribute 
    // to deny individual security permissions.
    // Set the Assertion property.

    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        Assertion = true)
     */

    // Set the ControlAppDomain property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        ControlAppDomain = true)
     */
    
    // Set the ControlDomainPolicy property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        ControlDomainPolicy = true)
     */
    
    // Set the ControlEvidence property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        ControlEvidence = true)
     */
    
    // Set the ControlPolicy property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        ControlPolicy = true)
     */
    
    // Set the ControlPrincipal property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        ControlPrincipal = true)
     */
    
    // Set the ControlThread property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        ControlThread = true)
     */
    
    // Set the Execution property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        Execution = true)
     */
    
    // Set the Flags property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        Flags = SecurityPermissionFlag.NoFlags)
     */
    
    // Set the Infrastructure property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        Infrastructure = true)
     */
    
    // Set the RemotingConfiguration property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        RemotingConfiguration = true)
     */
    
    // Set the SerializationFormatter property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        SerializationFormatter = true)
     */
    
    // Set the SkipVerification property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        SkipVerification = true)
     */

    // Set the UnmanagedCode property.
    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        UnmanagedCode = true)
     */
    
    public static void DenySecurityPermissions() 
    {
        Console.WriteLine("Executing DenySecurityPermissions.");
        Console.WriteLine("Denied all permissions individually.");
        TestSecurityPermissions();
    } //DenySecurityPermissions  

    // This method demonstrates the use of SecurityPermissionFlag.AllFlags 
    // to deny all security permissions.

    /** @attribute SecurityPermissionAttribute(SecurityAction.Deny, 
        Flags = SecurityPermissionFlag.AllFlags)
     */
    
    public static void DenyAllSecurityPermissions() 
    {
        Console.WriteLine("\nExecuting DenyAllSecurityPermissions.");
        Console.WriteLine("Denied all permissions using " + 
        "SecurityPermissionFlag.AllFlags.");
        TestSecurityPermissions();
    } //DenyAllSecurityPermissions


    // This method demonstrates the effect of not denying security permissions.
    public static void DoNotDenySecurityPermissions() 
    {
        Console.WriteLine("\nExecuting DoNotDenySecurityPermissions.");
        Console.WriteLine("No permissions have been denied.");
        DemandSecurityPermissions();
    } //DoNotDenySecurityPermissions


    public static void TestSecurityPermissions() 
    {
        Console.WriteLine("\nExecuting TestSecurityPermissions.\n");
        try {
            SecurityPermission sp =  
                new SecurityPermission(SecurityPermissionFlag.Assertion);
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
            // This demand should cause an exception.
            sp.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.Assertion failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
            new SecurityPermission(SecurityPermissionFlag.ControlAppDomain);
            Console.WriteLine("Demanding " + 
            "SecurityPermissionFlag.ControlAppDomain");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlAppDomain failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlDomainPolicy);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlDomainPolicy");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlDomainPolicy failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlEvidence);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlEvidence");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlEvidence failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlPolicy);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlPolicy");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlPolicy failed: " + 
            e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlPrincipal);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlPrincipal");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlPrincipal failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
            new SecurityPermission(SecurityPermissionFlag.ControlThread);
            Console.WriteLine("Demanding " 
            + "SecurityPermissionFlag.ControlThread");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlThread failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
            new SecurityPermission(SecurityPermissionFlag.Execution);
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.Execution failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
            new SecurityPermission(SecurityPermissionFlag.Infrastructure);
            Console.WriteLine("Demanding " + 
            "SecurityPermissionFlag.Infrastructure");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.Infrastructure failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.RemotingConfiguration);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.RemotingConfiguration");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) { 
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.RemotingConfiguration failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.SerializationFormatter);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.SerializationFormatter");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.SerializationFormatter failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.SkipVerification);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.SkipVerification");
            sp.Demand();
            TestFailed();
        }
        catch (System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.SkipVerification failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.UnmanagedCode);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.UnmanagedCode");
            // This demand should cause an exception.
            sp.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.UnmanagedCode failed: " 
                + e.get_Message()));
        }
    } //TestSecurityPermissions

    public static void TestFailed() throws Exception
    {
        Console.WriteLine("In TestFailed method.");
        Console.WriteLine("Throwing an exception.");
        throw new Exception() ;
    } //TestFailed

    public static void DemandSecurityPermissions() 
    {
        Console.WriteLine("\nExecuting DemandSecurityPermissions.\n");
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.Assertion);
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.Assertion succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.Assertion failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlAppDomain);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlAppDomain");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.ControlAppDomain succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlAppDomain failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlDomainPolicy);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlDomainPolicy");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.ControlDomainPolicy succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlDomainPolicy failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlEvidence);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlEvidence");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.ControlEvidence succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlEvidence failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlPolicy);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlPolicy");
            sp.Demand();
            Console.WriteLine("Demand " 
            + "for SecurityPermissionFlag.ControlPolicy succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlPolicy failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlPrincipal);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlPrincipal");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.ControlPrincipal succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlPrincipal failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.ControlThread);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.ControlThread");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.ControlThread succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.ControlThread failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.Execution);
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.Execution succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.Execution failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.Infrastructure);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.Infrastructure");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.Infrastructure succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.Infrastructure failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.RemotingConfiguration);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.RemotingConfiguration");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.RemotingConfiguration succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.RemotingConfiguration failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.SerializationFormatter);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.SerializationFormatter");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.SerializationFormatter succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.SerializationFormatter failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.SkipVerification);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.SkipVerification");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.SkipVerification succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.SkipVerification failed: " 
                + e.get_Message()));
        }
        try {
            SecurityPermission sp =  
                new SecurityPermission(
                SecurityPermissionFlag.UnmanagedCode);
            Console.WriteLine("Demanding " 
                + "SecurityPermissionFlag.UnmanagedCode");
            sp.Demand();
            Console.WriteLine("Demand for " 
                + "SecurityPermissionFlag.UnmanagedCode succeeded.");
        }
        catch(System.Exception e) {
            Console.WriteLine(("Demand for " 
                + "SecurityPermissionFlag.UnmanagedCode failed: " 
                + e.get_Message()));
        }
    } //DemandSecurityPermissions

    public static void main(String[] args)
    {
        PermissionDemo();
    } //main
} //MyClass 

平台

Windows 98、Windows 2000 SP4、Windows Millennium Edition、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。

版本信息

.NET Framework

受以下版本支持：2.0、1.1、1.0

请参见

参考

System.Security.Permissions 命名空间
SecurityPermission 类
SecurityPermissionAttribute 类