MessagePropertyFilter.Label 屬性

定義

命名空間:

System.Messaging

組件:

System.Messaging.dll

取得或設定值，指出在接收或窺視訊息時是否要擷取 Label 屬性資訊。

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

屬性值

Boolean

true 表示接收 Label 資訊，否則為 false。 預設為 true。

屬性

MessagingDescriptionAttribute

範例

下列程式代碼範例示範 如何使用 Label 屬性。

// 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);

備註

類別 Label 的 Message 屬性會指定訊息的標籤。

另請參閱

• MessageQueue
• DefaultLabelSize
• Label