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SecurityAction Enum

Definition

Namespace:
System.Security.Permissions
Assemblies:
netstandard.dll, System.Runtime.dll
Assembly:
System.Runtime.Extensions.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll
Source:
SecurityAction.cs

Caution

Code Access Security is not supported or honored by the runtime.

Specifies the security actions that can be performed using declarative security.

public enum class SecurityAction
[System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public enum SecurityAction
public enum SecurityAction
[System.Serializable]
public enum SecurityAction
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public enum SecurityAction
[<System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type SecurityAction = 
type SecurityAction = 
[<System.Serializable>]
type SecurityAction = 
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type SecurityAction = 
Public Enum SecurityAction
Inheritance
Object
ValueType
Enum
SecurityAction
Attributes
ObsoleteAttribute SerializableAttribute ComVisibleAttribute

Fields

Name Value Description
Demand 2

All callers higher in the call stack are required to have been granted the permission specified by the current permission object.
Assert 3

The calling code can access the resource identified by the current permission object, even if callers higher in the stack have not been granted permission to access the resource (see Using the Assert Method).
Deny 4

The ability to access the resource specified by the current permission object is denied to callers, even if they have been granted permission to access it (see Using the Deny Method).
PermitOnly 5

Only the resources specified by this permission object can be accessed, even if the code has been granted permission to access other resources.
LinkDemand 6

The immediate caller is required to have been granted the specified permission. Do not use in the .NET Framework 4. For full trust, use SecurityCriticalAttribute instead; for partial trust, use Demand.
InheritanceDemand 7

The derived class inheriting the class or overriding a method is required to have been granted the specified permission.
RequestMinimum 8

The request for the minimum permissions required for code to run. This action can only be used within the scope of the assembly.
RequestOptional 9

The request for additional permissions that are optional (not required to run). This request implicitly refuses all other permissions not specifically requested. This action can only be used within the scope of the assembly.
RequestRefuse 10

The request that permissions that might be misused will not be granted to the calling code. This action can only be used within the scope of the assembly.

Remarks

Caution

Code Access Security (CAS) has been deprecated across all versions of .NET Framework and .NET. Recent versions of .NET do not honor CAS annotations and produce errors if CAS-related APIs are used. Developers should seek alternative means of accomplishing security tasks.

The following table describes the time that each security action takes place and the targets that it supports.

Important

In .NET Framework 4, runtime support has been removed for enforcing the Deny, RequestMinimum, RequestOptional, and RequestRefuse permission requests. These requests should not be used in code that is based on .NET Framework 4 or later. For more information about this and other changes, see Security Changes.

You should not use LinkDemand in .NET Framework 4. Instead, use the SecurityCriticalAttribute to restrict usage to fully trusted applications, or use Demand to restrict partially trusted callers.

Declaration of security action Time of action Targets supported
LinkDemand (do not use in .NET Framework 4+) Just-in-time compilation Class, method
InheritanceDemand Load time Class, method
Demand Run time Class, method
Assert Run time Class, method
Deny (obsolete in .NET Framework 4) Run time Class, method
PermitOnly Run time Class, method
RequestMinimum (obsolete in .NET Framework 4) Grant time Assembly
RequestOptional (obsolete in .NET Framework 4) Grant time Assembly
RequestRefuse (obsolete in .NET Framework 4) Grant time Assembly

For additional information about attribute targets, see Attribute.

Applies to