MethodBuilder::AddDeclarativeSecurity Method (SecurityAction, PermissionSet^)


Adds declarative security to this method.

Namespace:   System.Reflection.Emit
Assembly:  mscorlib (in mscorlib.dll)

void AddDeclarativeSecurity(
	SecurityAction action,
	PermissionSet^ pset


Type: System.Security.Permissions::SecurityAction

The security action to be taken (Demand, Assert, and so on).

Type: System.Security::PermissionSet^

The set of permissions the action applies to.

Exception Condition

The action is invalid (RequestMinimum, RequestOptional, and RequestRefuse are invalid).


The containing type has been created using CreateType.


The permission set pset contains an action that was added earlier by AddDeclarativeSecurity.


For the current method, the IsGenericMethod property is true, but the IsGenericMethodDefinition property is false.


pset is null.

AddDeclarativeSecurity can be called several times, with each call specifying a security action (such as Demand, Assert, and Deny) and a set of permissions that the action applies to.


In the .NET Framework versions 1.0, 1.1, and 2.0, the declarative security attributes applied to a method by using the AddDeclarativeSecurity method are stored in the old XML metadata format. See Emitting Declarative Security Attributes.

The code sample below illustrates the contextual use of AddDeclarativeSecurity to require the caller of a method to have unrestricted permissions.

// myModBuilder is an instance of ModuleBuilder.
// Note that for the use of PermissionSet and SecurityAction,
// the namespaces System::Security and System::Security::Permissions
// should be included.

TypeBuilder^ myTypeBuilder = myModBuilder->DefineType( "MyType",
                             TypeAttributes::Public );

array<Type^>^ temp0 = {int::typeid, int::typeid};
MethodBuilder^ myMethod1 = myTypeBuilder->DefineMethod( "MyMethod",
                           int::typeid, temp0 );

PermissionSet^ myMethodPermissions = gcnew PermissionSet(
                                     PermissionState::Unrestricted );

myMethod1->AddDeclarativeSecurity( SecurityAction::Demand,
                                   myMethodPermissions );

.NET Framework
Available since 1.1
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