StorePermissionAttribute コンストラクタとは何？わかりやすく解説 Weblio辞書

.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

StorePermissionAttribute コンストラクタ

メモ : このコンストラクタは、.NET Framework version 2.0 で新しく追加されたものです。

指定したセキュリティアクションを使用して StorePermissionAttribute クラスの新しいインスタンスを初期化します。

名前空間: System.Security.Permissions
アセンブリ: System (system.dll 内)
構文

Visual Basic (宣言)

Public Sub New ( _
    action As SecurityAction _
)

Visual Basic (使用法)

Dim action As SecurityAction

Dim instance As New StorePermissionAttribute(action)

public StorePermissionAttribute (
    SecurityAction action
)

C++

public:
StorePermissionAttribute (
    SecurityAction action
)

public StorePermissionAttribute (
    SecurityAction action
)

JScript

public function StorePermissionAttribute (
    action : SecurityAction
)

パラメータ

action: SecurityAction 値の 1 つ。

使用例

StorePermissionAttribute を使用して、ストアに追加するためのアクセス許可を拒否するコード例を次に示します。このコード例は、StorePermission クラスのトピックで取り上げているコード例の一部分です。

Visual Basic

'Deny the permission the ability to add to a store.
<StorePermission(SecurityAction.Deny, Flags:=StorePermissionFlags.AddToStore)>
 _
Private Shared Sub AddToStore(ByVal
 cert As X509Certificate2)
    Try
        Dim store As New
 X509Store("teststore", StoreLocation.CurrentUser)
        store.Open(OpenFlags.ReadWrite)
        ' The following attempt to add a certificate results in an exception
 being thrown.
        store.Add(cert)
        Return
    Catch e As SecurityException
        Console.WriteLine("Security exception thrown when attempting:
 " + _
        CType(e.FirstPermissionThatFailed, System.Security.Permissions.StorePermission).Flags)
        Return
    End Try

End Sub 'AddToStore

//Deny the permission the ability to add to a store.
[StorePermission(SecurityAction.Deny, Flags = StorePermissionFlags.AddToStore)]
private static void AddToStore(X509Certificate2
 cert)
{
    try
    {
        X509Store store = new X509Store("teststore"
,
 StoreLocation.CurrentUser);

        store.Open(OpenFlags.ReadWrite);

        // The following attempt to add a certificate results in an
 exception being thrown.
        store.Add(cert);
        return;
    }
    catch (SecurityException e)
    {
        Console.WriteLine("Security exception thrown when attempting: "
 + 
            ((StorePermission)e.FirstPermissionThatFailed).Flags);
        return;
    }
}

//Deny the permission the ability to add to a store.
/** @attribute StorePermission(SecurityAction.Deny, Flags =
    StorePermissionFlags.AddToStore)
 */
private static void AddToStore(X509Certificate2
 cert)
{
    try
    {
        X509Store store = new X509Store("teststore"
,
            StoreLocation.CurrentUser);
        store.Open(OpenFlags.ReadWrite);
        // The following attempt to add a certificate results in 
        // an exception being thrown.
        store.Add(cert);
        return;
    }
    catch (System.Security.SecurityException e)
    {
        Console.WriteLine("Security exception thrown when attempting: "
            + ((StorePermission)e.get_FirstPermissionThatFailed()).get_Flags());
        return;
    }
} //AddToStore