FirstMatchCodeGroup(IMembershipCondition, PolicyStatement) 构造函数

定义

命名空间:

System.Security.Policy

程序集:

System.Security.Permissions.dll

包:

System.Security.Permissions v9.0.0-preview.5.24306.7

Source:

FirstMatchCodeGroup.cs

初始化 FirstMatchCodeGroup 类的新实例。

public:
 FirstMatchCodeGroup(System::Security::Policy::IMembershipCondition ^ membershipCondition, System::Security::Policy::PolicyStatement ^ policy);

public FirstMatchCodeGroup (System.Security.Policy.IMembershipCondition membershipCondition, System.Security.Policy.PolicyStatement policy);

new System.Security.Policy.FirstMatchCodeGroup : System.Security.Policy.IMembershipCondition * System.Security.Policy.PolicyStatement -> System.Security.Policy.FirstMatchCodeGroup

Public Sub New (membershipCondition As IMembershipCondition, policy As PolicyStatement)

参数

membershipCondition

IMembershipCondition

成员条件，它测试证据以确定此代码组是否应用策略。

policy

PolicyStatement

形式为权限集和特性的代码组的策略声明，这些权限集和特性将被授予匹配成员条件的代码。

例外

ArgumentException

membershipCondition 参数的类型无效。

- 或 -

policy 参数的类型无效。

示例

以下代码演示了构造函数的 FirstMatchCodeGroup 用法。 此代码示例是为 FirstMatchCodeGroup 类提供的更大示例的一部分。

FileIOPermission^ rootFilePermissions =
   gcnew FileIOPermission( PermissionState::None );
rootFilePermissions->AllLocalFiles = FileIOPermissionAccess::Read;
rootFilePermissions->SetPathList( FileIOPermissionAccess::Read, L"C:\\" );

// Add a permission to a named permission set.
NamedPermissionSet^ namedPermissions =
   gcnew NamedPermissionSet( L"RootPermissions" );
namedPermissions->AddPermission( rootFilePermissions );

// Create a PolicyStatement with exclusive rights to the policy.
PolicyStatement^ policy = gcnew PolicyStatement(
   namedPermissions,PolicyStatementAttribute::Exclusive );

// Create a FirstMatchCodeGroup with a membership condition that
// matches all code, and an exclusive policy.
FirstMatchCodeGroup^ codeGroup = gcnew FirstMatchCodeGroup(
   gcnew AllMembershipCondition,policy );

FileIOPermission rootFilePermissions =
    new FileIOPermission(PermissionState.None);
rootFilePermissions.AllLocalFiles = FileIOPermissionAccess.Read;
rootFilePermissions.SetPathList(FileIOPermissionAccess.Read,"C:\\");

// Add a permission to a named permission set.
NamedPermissionSet namedPermissions =
    new NamedPermissionSet("RootPermissions");
namedPermissions.AddPermission(rootFilePermissions);

// Create a PolicyStatement with exclusive rights to the policy.
PolicyStatement policy = new PolicyStatement(
    namedPermissions,PolicyStatementAttribute.Exclusive);

// Create a FirstMatchCodeGroup with a membership condition that
// matches all code, and an exclusive policy.
FirstMatchCodeGroup codeGroup =
    new FirstMatchCodeGroup(
    new AllMembershipCondition(),
    policy);

Dim rootFilePermissions As New FileIOPermission(PermissionState.None)
rootFilePermissions.AllLocalFiles = FileIOPermissionAccess.Read
rootFilePermissions.SetPathList(FileIOPermissionAccess.Read, "C:\\")

' Add a permission to a named permission set.
Dim namedPermissions As New NamedPermissionSet("RootPermissions")
namedPermissions.AddPermission(rootFilePermissions)

' Create a PolicyStatement with exclusive rights to the policy.
Dim policy As New PolicyStatement( _
    namedPermissions, _
    PolicyStatementAttribute.Exclusive)

' Create a FirstMatchCodeGroup with a membership condition that 
' matches all code, and an exclusive policy.
Dim codeGroup As New FirstMatchCodeGroup( _
    New AllMembershipCondition, _
    policy)

注解

此构造函数创建基本代码组，应从自定义代码组的构造函数调用。 可以使用 方法添加 AddChild 子代码组。