GacIdentityPermissionAttribute 类
定义
注意
Code Access Security is not supported or honored by the runtime.
允许对要使用声明性安全应用到代码中的 GacIdentityPermission 执行安全操作。Allows security actions for GacIdentityPermission to be applied to code using declarative security. 此类不能被继承。This class cannot be inherited.
public ref class GacIdentityPermissionAttribute sealed : System::Security::Permissions::CodeAccessSecurityAttribute
[System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)]
public sealed class GacIdentityPermissionAttribute : System.Security.Permissions.CodeAccessSecurityAttribute
[System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)]
[System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public sealed class GacIdentityPermissionAttribute : System.Security.Permissions.CodeAccessSecurityAttribute
[System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)]
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public sealed class GacIdentityPermissionAttribute : System.Security.Permissions.CodeAccessSecurityAttribute
[<System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)>]
type GacIdentityPermissionAttribute = class
inherit CodeAccessSecurityAttribute
[<System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)>]
[<System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type GacIdentityPermissionAttribute = class
inherit CodeAccessSecurityAttribute
[<System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Class | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Struct, AllowMultiple=true, Inherited=false)>]
[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type GacIdentityPermissionAttribute = class
inherit CodeAccessSecurityAttribute
Public NotInheritable Class GacIdentityPermissionAttribute
Inherits CodeAccessSecurityAttribute
- 继承
- 属性
示例
以下示例演示了 GacIdentityPermissionAttribute 的用法。The following example demonstrates the use of GacIdentityPermissionAttribute.
// To run this sample you must create a strong-name key named snkey.snk
// using the Strong Name tool (sn.exe). Both the library assembly and the
// application assembly that calls it must be signed with that key.
// To run successfully, the application assembly must be in the global
// assembly cache.
// This console application can be created using the following code.
//#using <mscorlib.dll>
//#using <ClassLibrary1.dll>
//using namespace System;
//using namespace System::Security;
//using namespace System::Reflection;
//using namespace ClassLibrary1;
//[assembly: AssemblyVersion(S"1.0.555.0")]
//[assembly: AssemblyKeyFile(S"snKey.snk")];
//int main()
//{
// try
// {
// Class1* myLib = new Class1();
// myLib->DoNothing();
//
// Console::WriteLine(S"Exiting the sample.");
// }
// catch (Exception* e)
// {
// Console::WriteLine(e->Message);
// }
//}
using namespace System;
using namespace System::Security::Permissions;
namespace ClassLibrary1
{
// Demand that the calling program be in the global assembly cache.
[GacIdentityPermissionAttribute(SecurityAction::Demand)]
public ref class Class1
{
public:
void DoNothing()
{
Console::WriteLine( "Exiting the library program." );
}
};
}
// To run this sample you must create a strong-name key named snkey.snk
// using the Strong Name tool (sn.exe). Both the library assembly and the
// application assembly that calls it must be signed with that key.
// To run successfully, the application assembly must be in the global
// assembly cache.
// This console application can be created using the following code.
//using System;
//using System.Security;
//using System.Reflection;
//using ClassLibrary1;
//[assembly: AssemblyVersion("1.0.555.0")]
//[assembly: AssemblyKeyFile("snKey.snk")]
//class MyClass
//{
// static void Main(string[] args)
// {
// try
// {
// Class1 myLib = new Class1();
// myLib.DoNothing();
//
// Console.WriteLine("Exiting the sample.");
// }
// catch (Exception e)
// {
// Console.WriteLine(e.Message);
// }
// }
//}
using System;
using System.Security.Permissions;
namespace ClassLibrary1
{
// Demand that the calling program be in the global assembly cache.
[GacIdentityPermissionAttribute(SecurityAction.Demand)]
public class Class1
{
public void DoNothing()
{
Console.WriteLine("Exiting the library program.");
}
}
}
' To run this sample you must create a strong-name key named snkey.snk
' using the Strong Name tool (sn.exe). Both the library assembly and the
' application assembly that calls it must be signed with that key.
' To run successfully, the application assembly must be in the global
' assembly cache.
' This console application can be created using the following code.
'Imports System.Security
'Imports System.Security.Policy
'Imports System.Security.Principal
'Imports System.Security.Permissions
'Imports ClassLibraryVB
'Class [MyClass]
'
' Overloads Shared Sub Main(ByVal args() As String)
' Try
' Dim myLib As New Class1
' myLib.DoNothing()
'
' Console.WriteLine("Exiting the sample.")
' Catch e As Exception
' Console.WriteLine(e.Message)
' End Try
' End Sub
'End Class
Imports System.Security.Permissions
' Demand that the calling program be in the global assembly cache.
<GacIdentityPermissionAttribute(SecurityAction.Demand)> _
Public Class Class1
Public Sub DoNothing()
Console.WriteLine("Exiting the library program.")
End Sub
End Class
注解
重要
不再支持部分受信任的代码。Partially trusted code is no longer supported. 此属性在 .NET Core 中不起作用。This attribute has no effect in .NET Core.
此类用于确保调用方在全局程序集缓存中注册 (GAC) 。This class is used to ensure that callers are registered in the global assembly cache (GAC).
允许的声明的作用域取决于所使用的 SecurityAction 值。The scope of the declaration that is allowed depends on the SecurityAction value that is used.
安全特性声明的安全信息存储在属性目标的元数据中,由系统在运行时进行访问。The security information declared by a security attribute is stored in the metadata of the attribute target and is accessed by the system at run time. 安全特性仅用于声明性安全。Security attributes are used only for declarative security. 对于命令性安全,请使用相应的权限类 GacIdentityPermission 。For imperative security, use the corresponding permission class, GacIdentityPermission.
重要
从 .NET Framework 4 开始,不使用标识权限。Starting with the .NET Framework 4, identity permissions are not used.
在 .NET Framework 版本1.0 和1.1 中,即使调用程序集是完全受信任的,对标识权限的要求仍有效。In the .NET Framework versions 1.0 and 1.1, demands on the identity permissions are effective even when the calling assembly is fully trusted. 也就是说,尽管调用程序集具有完全信任,但如果程序集不满足要求的条件,则标识权限的请求会失败。That is, although the calling assembly has full trust, a demand for an identity permission fails if the assembly does not meet the demanded criteria. 在 .NET Framework 版本2.0 中,如果调用程序集具有完全信任,则标识权限要求将无效。In the .NET Framework version 2.0, demands for identity permissions are ineffective if the calling assembly has full trust. 这将确保所有权限的一致性,从而不会将标识权限视为一种特殊情况。This assures consistency for all permissions, eliminating the treatment of identity permissions as a special case.
有关使用特性的详细信息,请参阅 特性。For more information about using attributes, see Attributes.
构造函数
| GacIdentityPermissionAttribute(SecurityAction) |
使用指定的 SecurityAction 值初始化 GacIdentityPermissionAttribute 类的新实例。Initializes a new instance of the GacIdentityPermissionAttribute class with the specified SecurityAction value. |
属性
| Action |
获取或设置安全性操作。Gets or sets a security action. (继承自 SecurityAttribute) |
| TypeId |
在派生类中实现时,获取此 Attribute 的唯一标识符。When implemented in a derived class, gets a unique identifier for this Attribute. (继承自 Attribute) |
| Unrestricted |
获取或设置一个值,该值指示是否声明了对受该特性保护的资源有完全(无限制的)权限。Gets or sets a value indicating whether full (unrestricted) permission to the resource protected by the attribute is declared. (继承自 SecurityAttribute) |
方法
| CreatePermission() |
创建一个新的 GacIdentityPermission 对象。Creates a new GacIdentityPermission object. |
| Equals(Object) |
返回一个值,该值指示此实例是否与指定的对象相等。Returns a value that indicates whether this instance is equal to a specified object. (继承自 Attribute) |
| GetHashCode() |
返回此实例的哈希代码。Returns the hash code for this instance. (继承自 Attribute) |
| GetType() |
获取当前实例的 Type。Gets the Type of the current instance. (继承自 Object) |
| IsDefaultAttribute() |
在派生类中重写时,指示此实例的值是否是派生类的默认值。When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (继承自 Attribute) |
| Match(Object) |
当在派生类中重写时,返回一个指示此实例是否等于指定对象的值。When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (继承自 Attribute) |
| MemberwiseClone() |
创建当前 Object 的浅表副本。Creates a shallow copy of the current Object. (继承自 Object) |
| ToString() |
返回表示当前对象的字符串。Returns a string that represents the current object. (继承自 Object) |
显式接口实现
| _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) |
将一组名称映射为对应的一组调度标识符。Maps a set of names to a corresponding set of dispatch identifiers. (继承自 Attribute) |
| _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) |
检索对象的类型信息,然后可以使用该信息获取接口的类型信息。Retrieves the type information for an object, which can be used to get the type information for an interface. (继承自 Attribute) |
| _Attribute.GetTypeInfoCount(UInt32) |
检索对象提供的类型信息接口的数量(0 或 1)。Retrieves the number of type information interfaces that an object provides (either 0 or 1). (继承自 Attribute) |
| _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) |
提供对某一对象公开的属性和方法的访问。Provides access to properties and methods exposed by an object. (继承自 Attribute) |