MessagePropertyFilter.HashAlgorithm 属性
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
获取或设置一个值,该值指示接收或查看消息时是否检索 HashAlgorithm 属性信息。
public:
property bool HashAlgorithm { bool get(); void set(bool value); };
[System.Messaging.MessagingDescription("MsgHashAlgorithm")]
public bool HashAlgorithm { get; set; }
[<System.Messaging.MessagingDescription("MsgHashAlgorithm")>]
member this.HashAlgorithm : bool with get, set
Public Property HashAlgorithm As Boolean
属性值
如果接收 HashAlgorithm 信息,则为 true
;否则为 false
。 默认值为 false
。
- 属性
示例
下面的代码示例演示如何使用 HashAlgorithm 属性。
// Set the queue's MessageReadPropertyFilter property
// to enable the message's HashAlgorithm property.
queue->MessageReadPropertyFilter->HashAlgorithm = 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
// HashAlgorithm property.
Console::WriteLine("Message.HashAlgorithm: {0}",
orderMessage->HashAlgorithm);
// Set the queue's MessageReadPropertyFilter property to enable the
// message's HashAlgorithm property.
queue.MessageReadPropertyFilter.HashAlgorithm = 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 HashAlgorithm property.
Console.WriteLine("Message.HashAlgorithm: {0}",
orderMessage.HashAlgorithm);
注解
HashAlgorithm类的 Message 属性标识消息队列在对消息进行身份验证时使用的哈希算法。 为消息创建数字签名时,也使用哈希算法。