Provides access to the properties needed to define a Message Queuing message.
Assembly: System.Messaging (in System.Messaging.dll)
Thetype exposes the following members.
|Message()||Initializes a new instance of the class with an empty body.|
|Message(Object)||Initializes a new instance of the class, using the XmlMessageFormatter to serialize the specified object into the body of the message.|
|Message(Object, IMessageFormatter)||Initializes a new instance of the class using the specified formatter to serialize the specified object into the body of the message.|
|AcknowledgeType||Gets or sets the type of acknowledgment message to be returned to the sending application.|
|Acknowledgment||Gets the classification of acknowledgment that this message represents.|
|AdministrationQueue||Gets or sets the queue that receives the acknowledgement messages that Message Queuing generates.|
|AppSpecific||Gets or sets additional, application-specific information.|
|ArrivedTime||Gets the time that the message arrived in the destination queue.|
|AttachSenderId||Gets or sets a value that indicates whether the sender ID should be attached to the message.|
|Authenticated||Gets a value that indicates whether the message was authenticated.|
|AuthenticationProviderName||Gets or sets the name of the cryptographic provider used to generate the digital signature of the message.|
|AuthenticationProviderType||Gets or sets the type of cryptographic provider used to generate the digital signature of the message.|
|Body||Gets or sets the content of the message.|
|BodyStream||Gets or sets the information in the body of the message.|
|BodyType||Gets or sets the type of data that the message body contains.|
|CanRaiseEvents||Gets a value indicating whether the component can raise an event. (Inherited from Component.)|
|ConnectorType||Gets or sets a value that indicates that some message properties typically set by Message Queuing were set by the sending application.|
|Container||Gets the IContainer that contains the Component. (Inherited from Component.)|
|CorrelationId||Gets or sets the message identifier used by acknowledgment, report, and response messages to reference the original message.|
|DesignMode||Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component.)|
|DestinationQueue||Gets the intended destination queue for a message.|
|DestinationSymmetricKey||Gets or sets the symmetric key used to encrypt application-encrypted messages or messages sent to foreign queues.|
|DigitalSignature||Gets or sets the digital signature that Message Queuing uses to authenticate the message.|
|EncryptionAlgorithm||Gets or sets the encryption algorithm used to encrypt the body of a private message.|
|Events||Gets the list of event handlers that are attached to this Component. (Inherited from Component.)|
|Extension||Gets or sets additional, application-defined information associated with the message.|
|Formatter||Gets or sets the formatter used to serialize an object into or deserialize an object from the message body.|
|HashAlgorithm||Gets or sets the hashing algorithm that Message Queuing uses when authenticating a message or creating a digital signature for a message.|
|Id||Gets the message's identifier.|
|IsFirstInTransaction||Gets a value that indicates whether the message was the first message sent in a transaction.|
|IsLastInTransaction||Gets a value that indicates whether the message was the last message sent in a transaction.|
|Label||Gets or sets an application-defined Unicode string that describes the message.|
|LookupId||Introduced in MSMQ 3.0. Gets the message's lookup identifier.|
|MessageType||Gets the message type: Normal, Acknowledgment, or Report.|
|Priority||Gets or sets the message priority, which determines where in the queue the message is placed.|
|Recoverable||Gets or sets a value that indicates whether the message is guaranteed to be delivered in the event of a computer failure or network problem.|
|ResponseQueue||Gets or sets the queue that receives application-generated response messages.|
|SecurityContext||Gets or sets the security context for a message.|
|SenderCertificate||Gets or sets the security certificate used to authenticate messages.|
|SenderId||Gets the identifier of the sending user.|
|SenderVersion||Gets the version of Message Queuing used to send the message.|
|SentTime||Gets the date and time on the sending computer that the message was sent by the source queue manager.|
|Site||Gets or sets the ISite of the Component. (Inherited from Component.)|
|SourceMachine||Gets the computer from which the message originated.|
|TimeToBeReceived||Gets or sets the maximum amount of time for the message to be received from the destination queue.|
|TimeToReachQueue||Gets or sets the maximum amount of time for the message to reach the queue.|
|TransactionId||Gets the identifier for the transaction of which the message was a part.|
|TransactionStatusQueue||Gets the transaction status queue on the source computer.|
|UseAuthentication||Gets or sets a value that indicates whether the message was (or must be) authenticated before being sent.|
|UseDeadLetterQueue||Gets or sets a value that indicates whether a copy of the message that could not be delivered should be sent to a dead-letter queue.|
|UseEncryption||Gets or sets a value that indicates whether to make the message private.|
|UseJournalQueue||Gets or sets a value that indicates whether a copy of the message should be kept in a machine journal on the originating computer.|
|UseTracing||Gets or sets a value that indicates whether to trace a message as it moves toward its destination queue.|
|CreateObjRef||Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.)|
|Dispose()||Releases all resources used by the Component. (Inherited from Component.)|
|Dispose(Boolean)||Releases the unmanaged resources used by the Component and optionally releases the managed resources. (Inherited from Component.)|
|Equals(Object)||Determines whether the specified object is equal to the current object. (Inherited from Object.)|
|Finalize||Releases unmanaged resources and performs other cleanup operations before the Component is reclaimed by garbage collection. (Inherited from Component.)|
|GetHashCode||Serves as the default hash function. (Inherited from Object.)|
|GetLifetimeService||Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.)|
|GetService||Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|InitializeLifetimeService||Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.)|
|MemberwiseClone()||Creates a shallow copy of the current Object. (Inherited from Object.)|
|MemberwiseClone(Boolean)||Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.)|
|ToString||Returns a String containing the name of the Component, if any. This method should not be overridden. (Inherited from Component.)|
Use the class to peek or receive messages from a queue, or to have fine control over message properties when sending a message to a queue.
MessageQueue uses the class when it peeks or receives messages from queues, because both the MessageQueue.Peek and MessageQueue.Receive methods create a new instance of the class and set the instance's properties. The class's read-only properties apply to retrieving messages from a queue, while the read/write properties apply to sending and retrieving messages. When MessageQueue peeks or receives a message from a queue, its MessageReadPropertyFilter property determines which of the message's properties are retrieved.
The MessageQueue class's Send method allows you to specify any object type for a message being sent to that queue. You can use the MessageQueue instance's DefaultPropertiesToSend property to specify settings for generic messages sent to the queue. The types of settings include formatter, label, encryption, and authentication. You can also specify values for the appropriate DefaultPropertiesToSend members when you coordinate your messaging application to respond to acknowledgment and report messages. Using a instance to send a message to the queue gives you the flexibility to access and modify many of these properties—either for a single message or on a message-by-message basis. properties take precedence over DefaultPropertiesToSend.
Message data is stored in the Body property and to a lesser extent, the AppSpecific and Extension properties. When message data is encrypted, serialized, or deserialized, only the contents of the Body property are affected.
The contents of the Body property are serialized when the message is sent, using the Formatter property you specify. The serialized contents are found in the BodyStream property. You can also set the BodyStream property directly, for example, to send a file as the data content of a message. You can change the Body or Formatter properties at any time before sending the message, and the data will be serialized appropriately when you call Send.
The properties defined by the MessageQueue.DefaultPropertiesToSend property apply only to messages that are not of type . If you specify the DefaultPropertiesToSend property for a MessageQueue, the identically named properties in a instance sent to that queue cause these default properties to be ignored.
For a list of initial property values for an instance of , see the Message constructor.
The following code example demonstrates formatting a message body using BinaryMessageFormatter.
The following code example demonstrates formatting a message body using XmlMessageFormatter.