AppDomain.SetAppDomainPolicy 方法

为此应用程序域确定安全策略级别。

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

语法

声明
Public Sub SetAppDomainPolicy ( _
    domainPolicy As PolicyLevel _
)
用法
Dim instance As AppDomain
Dim domainPolicy As PolicyLevel

instance.SetAppDomainPolicy(domainPolicy)

public void SetAppDomainPolicy (
    PolicyLevel domainPolicy
)

public:
virtual void SetAppDomainPolicy (
    PolicyLevel^ domainPolicy
) sealed

public final void SetAppDomainPolicy (
    PolicyLevel domainPolicy
)

public final function SetAppDomainPolicy (
    domainPolicy : PolicyLevel
)

参数

• domainPolicy
  安全策略级别。

异常

异常类型	条件
ArgumentNullException	domainPolicy 为 空引用（在 Visual Basic 中为 Nothing）。
PolicyException	已经设置了安全策略级别。
AppDomainUnloadedException	试图对已卸载的应用程序域进行操作。

备注

在将程序集加载到 AppDomain 之前调用此方法，目的是使安全策略生效。

示例

Imports System
Imports System.Threading
Imports System.Security
Imports System.Security.Policy
Imports System.Security.Permissions



Class ADSetAppDomainPolicy
   
   Overloads Shared Sub Main(args() As String)
      ' Create a new application domain.
      Dim domain As AppDomain = System.AppDomain.CreateDomain("MyDomain")
      
      ' Create a new AppDomain PolicyLevel.
      Dim polLevel As PolicyLevel = PolicyLevel.CreateAppDomainLevel()
      ' Create a new, empty permission set.
      Dim permSet As New PermissionSet(PermissionState.None)
      ' Add permission to execute code to the permission set.
      permSet.AddPermission(New SecurityPermission(SecurityPermissionFlag.Execution))
      ' Give the policy level's root code group a new policy statement based
      ' on the new permission set.
      polLevel.RootCodeGroup.PolicyStatement = New PolicyStatement(permSet)
      ' Give the new policy level to the application domain.
      domain.SetAppDomainPolicy(polLevel)
      
      ' Try to execute the assembly.
      Try
         ' This will throw a PolicyException if the executable tries to
         ' access any resources like file I/Q or window creation.
         domain.ExecuteAssembly("Assemblies\MyWindowsExe.exe")
      Catch e As PolicyException
         Console.WriteLine("PolicyException: {0}", e.Message)
      End Try
      
      AppDomain.Unload(domain)
   End Sub 'Main
End Class 'ADSetAppDomainPolicy

using System;
using System.Threading;
using System.Security;
using System.Security.Policy;
using System.Security.Permissions;

namespace AppDomainSnippets
{
    class ADSetAppDomainPolicy
    {
        static void Main(string[] args)
        {
            // Create a new application domain.
            AppDomain domain = System.AppDomain.CreateDomain("MyDomain");
            
            // Create a new AppDomain PolicyLevel.
            PolicyLevel polLevel = PolicyLevel.CreateAppDomainLevel();
            // Create a new, empty permission set.
            PermissionSet permSet = new PermissionSet(PermissionState.None);
            // Add permission to execute code to the permission set.
            permSet.AddPermission
                (new SecurityPermission(SecurityPermissionFlag.Execution));
            // Give the policy level's root code group a new policy statement based
            // on the new permission set.
            polLevel.RootCodeGroup.PolicyStatement = new PolicyStatement(permSet);
            // Give the new policy level to the application domain.
            domain.SetAppDomainPolicy(polLevel);
            
            // Try to execute the assembly.
            try
            {
                // This will throw a PolicyException if the executable tries to
                // access any resources like file I/O or tries to create a window.
                domain.ExecuteAssembly("Assemblies\\MyWindowsExe.exe");
            }
            catch(PolicyException e)
            {
                Console.WriteLine("PolicyException: {0}", e.Message);
            }

            AppDomain.Unload(domain);
        }
    }
}

using namespace System;
using namespace System::Threading;
using namespace System::Security;
using namespace System::Security::Policy;
using namespace System::Security::Permissions;
int main()
{
   
   // Create a new application domain.
   AppDomain^ domain = System::AppDomain::CreateDomain( "MyDomain" );
   
   // Create a new AppDomain PolicyLevel.
   PolicyLevel^ polLevel = PolicyLevel::CreateAppDomainLevel();
   
   // Create a new, empty permission set.
   PermissionSet^ permSet = gcnew PermissionSet( PermissionState::None );
   
   // Add permission to execute code to the permission set.
   permSet->AddPermission( gcnew SecurityPermission( SecurityPermissionFlag::Execution ) );
   
   // Give the policy level's root code group a new policy statement based
   // on the new permission set.
   polLevel->RootCodeGroup->PolicyStatement = gcnew PolicyStatement( permSet );
   
   // Give the new policy level to the application domain.
   domain->SetAppDomainPolicy( polLevel );
   
   // Try to execute the assembly.
   try
   {
      
      // This will throw a PolicyException if the executable tries to
      // access any resources like file I/O or tries to create a window.
      domain->ExecuteAssembly( "Assemblies\\MyWindowsExe.exe" );
   }
   catch ( PolicyException^ e ) 
   {
      Console::WriteLine( "PolicyException: {0}", e->Message );
   }

   AppDomain::Unload( domain );
}

.NET Framework 安全性

• SecurityPermission  以使用此方法。关联的枚举：SecurityPermissionFlag.ControlPolicy。

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

AppDomain 类
AppDomain 成员
System 命名空间