FirstMatchCodeGroup(IMembershipCondition, PolicyStatement) 建構函式

定義

命名空間:

System.Security.Policy

組件:

System.Security.Permissions.dll

初始化 FirstMatchCodeGroup 類別的新執行個體。

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)

參數

membershipCondition

IMembershipCondition

成員資格條件，其測試辨識項以判斷這個程式碼群組是否套用原則。

policy

PolicyStatement

程式碼群組的原則陳述式，形式為要授與符合成員資格條件的程式碼之使用權限集合和屬性 (Attribute)。

例外狀況

ArgumentException

membershipCondition 參數的型別無效。

-或-

policy 參數的型別無效。

範例

下列程式代碼顯示建構函式的使用 FirstMatchCodeGroup 方式。 此程式代碼範例是針對 FirstMatchCodeGroup 類別提供的較大範例的一部分。

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)

備註

此建構函式會建立基本程式代碼群組，而且應該從自定義程式代碼群組的建構函式呼叫。 您可以使用 方法新增 AddChild 子程式代碼群組。