MessageQueuePermissionAttribute.Category 属性

定义

命名空间:

System.Messaging

程序集:

System.Messaging.dll

获取或设置队列类别。

public:
 property System::String ^ Category { System::String ^ get(); void set(System::String ^ value); };

public string Category { get; set; }

member this.Category : string with get, set

Public Property Category As String

属性值

String

队列类别（消息队列类型标识符），它允许应用程序将其队列分类。

例外

InvalidOperationException

该值为 null。

示例

下面的代码示例获取并设置消息队列权限属性的值 Category 。

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

// Create a new instance of MessageQueuePermissionAttribute.
MessageQueuePermissionAttribute^ attribute =
    gcnew MessageQueuePermissionAttribute(
    System::Security::Permissions::SecurityAction::Assert);

// Set the attribute's Category property value, based on the queue's
// Category property value.
attribute->Category = queue->Category.ToString();

// Display the new value of the attribute's Category property.
Console::WriteLine("attribute->Category: {0}",
    attribute->Category);

queue->Close();

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

// Create a new instance of MessageQueuePermissionAttribute.
MessageQueuePermissionAttribute attribute =
    new MessageQueuePermissionAttribute(
    System.Security.Permissions.SecurityAction.Assert);

// Set the attribute's Category property value, based on the queue's
// Category property value.
attribute.Category = queue.Category.ToString();

// Display the new value of the attribute's Category property.
Console.WriteLine("attribute.Category: {0}",
    attribute.Category.ToString());