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MessageQueuePermissionEntryCollection.Contains Method

Determines whether this collection contains a specified MessageQueuePermissionEntry.

Namespace:  System.Messaging
Assembly:  System.Messaging (in System.Messaging.dll)

public bool Contains(
	MessageQueuePermissionEntry value
)

Return Value

Type: System.Boolean
true if the specified MessageQueuePermissionEntry belongs to this collection; otherwise, false.

The following code example demonstrates the use of Contains.

// 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));

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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