MessagePropertyFilter.Label 属性

定义

命名空间:

System.Messaging

程序集:

System.Messaging.dll

获取或设置一个值，该值指示接收或查看消息时是否检索 Label 属性信息。

public:
 property bool Label { bool get(); void set(bool value); };

[System.Messaging.MessagingDescription("MsgLabel")]
public bool Label { get; set; }

[<System.Messaging.MessagingDescription("MsgLabel")>]
member this.Label : bool with get, set

Public Property Label As Boolean

属性值

Boolean

如果接收 Label 信息，则为 true；否则为 false。 默认值为 true。

属性

MessagingDescriptionAttribute

示例

下面的代码示例演示如何使用 Label 属性。

// Set the queue's MessageReadPropertyFilter property 
// to enable the message's Label property.
queue->MessageReadPropertyFilter->Label = true;

// Peek at the message. Time out after ten seconds 
// in case the message was not delivered.
orderMessage = queue->Peek(TimeSpan::FromSeconds(10.0));

// Display the value of the message's Label property.
Console::WriteLine("Message.Label: {0}", 
    orderMessage->Label);

// Set the queue's MessageReadPropertyFilter property to enable the
// message's Label property.
queue.MessageReadPropertyFilter.Label = true;

// Peek at the message. Time out after ten seconds in case the message
// was not delivered.
orderMessage = queue.Peek(TimeSpan.FromSeconds(10.0));

// Display the value of the message's Label property.
Console.WriteLine("Message.Label: {0}",
    orderMessage.Label);

注解

Label类的 Message 属性指定消息的标签。

另请参阅

• MessageQueue
• DefaultLabelSize
• Label