MessagePropertyFilter.AcknowledgeType 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 AcknowledgeType 属性信息。

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

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

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

Public Property AcknowledgeType As Boolean

属性值

Boolean

如果接收 AcknowledgeType 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 AcknowledgeType 属性。

// Set the queue's MessageReadPropertyFilter property 
// to enable the message's AcknowledgeType property.
queue->MessageReadPropertyFilter->
    AcknowledgeType = 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 
// AcknowledgeType property.
Console::WriteLine("Message.AcknowledgeType: {0}", 
    orderMessage->AcknowledgeType);

// Set the queue's MessageReadPropertyFilter property to enable the
// message's AcknowledgeType property.
queue.MessageReadPropertyFilter.AcknowledgeType = 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 AcknowledgeType property.
Console.WriteLine("Message.AcknowledgeType: {0}",
    orderMessage.AcknowledgeType);

注解

AcknowledgeType类的 Message 属性指定发送应用程序请求的确认消息的类型。 确认的类型定义何时返回确认。 在 Message.AcknowledgeType 发送消息之前设置 属性以请求特定类型的确认。

另请参阅

• AcknowledgeType
• Acknowledgment
• MessageQueue