MessageQueuePermissionEntryCollection.Contains メソッド

.NET Framework クラス ライブラリ リファレンス

MessageQueuePermissionEntryCollection.Contains メソッド

指定した MessageQueuePermissionEntry がコレクションに格納されているかどうかを確認します。

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

Visual Basic (宣言)

Public Function Contains ( _
    value As MessageQueuePermissionEntry _
) As Boolean

Visual Basic (使用法)

Dim instance As MessageQueuePermissionEntryCollection
Dim value As MessageQueuePermissionEntry
Dim returnValue As Boolean

returnValue = instance.Contains(value)

C#

public bool Contains (
    MessageQueuePermissionEntry value
)

C++

public:
bool Contains (
    MessageQueuePermissionEntry^ value
)

J#

public boolean Contains (
    MessageQueuePermissionEntry value
)

JScript

public function Contains (
    value : MessageQueuePermissionEntry
) : boolean

パラメータ

value

検索対象の MessageQueuePermissionEntry。

戻り値
指定した MessageQueuePermissionEntry がこのコレクションに属している場合は true。それ以外の場合は false。

使用例

Contains の使用方法を次のコード例に示します。

C#

// Connect to a queue on the local computer.
MessageQueue queue = new MessageQueue(".\\exampleQueue");

// Create a new instance of MessageQueuePermission.
MessageQueuePermission permission = new MessageQueuePermission();

// Get an instance of MessageQueuePermissionEntryCollection from the
// permission's PermissionEntries property.
MessageQueuePermissionEntryCollection collection =
    permission.PermissionEntries;

// Create a new instance of MessageQueuePermissionEntry.
MessageQueuePermissionEntry entry = new MessageQueuePermissionEntry(
    MessageQueuePermissionAccess.Receive,
    queue.MachineName,
    queue.Label,
    queue.Category.ToString());

// Add the entry to the collection.
collection.Add(entry);

// Show that the collection contains the entry.
Console.WriteLine("Collection contains first entry (true/false):
 {0}",
    collection.Contains(entry));

// Create another new instance of MessageQueuePermissionEntry.
MessageQueuePermissionEntry newEntry = new MessageQueuePermissionEntry(
    MessageQueuePermissionAccess.Send,
    queue.MachineName,
    queue.Label,
    queue.Category.ToString());

// Show that the collection does not contain the new entry.
Console.WriteLine("Collection contains second entry (true/false):
 {0}",
    collection.Contains(newEntry));

C++

// Connect to a queue on the local computer.
MessageQueue^ queue = gcnew MessageQueue(".\\exampleQueue");

// Create a new instance of MessageQueuePermission.
MessageQueuePermission^ permission = gcnew MessageQueuePermission();

// Get an instance of MessageQueuePermissionEntryCollection from the
// permission's PermissionEntries property.
MessageQueuePermissionEntryCollection^ collection =
    permission->PermissionEntries;

// Create a new instance of MessageQueuePermissionEntry.
MessageQueuePermissionEntry^ entry = gcnew MessageQueuePermissionEntry(
    MessageQueuePermissionAccess::Receive, 
    queue->MachineName, 
    queue->Label, 
    queue->Category.ToString());

// Add the entry to the collection.
collection->Add(entry);

// Show that the collection contains the entry.
Console::WriteLine("Collection contains first entry (true/false):
 {0}",
    collection->Contains(entry));

// Create another new instance of MessageQueuePermissionEntry.
MessageQueuePermissionEntry^ newEntry = 
    gcnew MessageQueuePermissionEntry(
    MessageQueuePermissionAccess::Send, 
    queue->MachineName, 
    queue->Label, 
    queue->Category.ToString());

// Show that the collection does not contain the new entry.
Console::WriteLine(
    "Collection contains second entry (true/false):
 {0}",
    collection->Contains(newEntry));

queue->Close();

J#

// Connect to a queue on the local computer.
MessageQueue queue = new MessageQueue(".\\exampleQueue");
// Create a new instance of MessageQueuePermission.
MessageQueuePermission permission = new MessageQueuePermission();
// Get an instance of MessageQueuePermissionEntryCollection from the
// permission's PermissionEntries property.
MessageQueuePermissionEntryCollection collection =
    permission.get_PermissionEntries();
// Create a new instance of MessageQueuePermissionEntry.
MessageQueuePermissionEntry entry =
    new MessageQueuePermissionEntry(MessageQueuePermissionAccess.Receive
,
    queue.get_MachineName(), queue.get_Label(),
    queue.get_Category().ToString());
// Add the entry to the collection.
collection.Add(entry);
// Show that the collection contains the entry.
Console.WriteLine("Collection contains first entry (true/false):
 {0}",
    ((System.Boolean)collection.Contains(entry)).ToString());
// Create another new instance of MessageQueuePermissionEntry.
MessageQueuePermissionEntry newEntry =
    new MessageQueuePermissionEntry(MessageQueuePermissionAccess.Send
,
    queue.get_MachineName(), queue.get_Label(),
    queue.get_Category().ToString());
// Show that the collection does not contain the new entry.
Console.WriteLine("Collection contains second entry (true/false):
 {0}",
    ((System.Boolean)collection.Contains(newEntry)).ToString());

.NET Framework のセキュリティ

• 直前の呼び出し元に対する完全な信頼。このメンバは、部分的に信頼されているコードから使用することはできません。詳細については、「」を参照してください。

プラットフォーム

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
MessageQueuePermissionEntryCollection クラス
MessageQueuePermissionEntryCollection メンバ
System.Messaging 名前空間