MessageQueue.Send Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Sends an object to a queue.
Overloads
Send(Object) |
Sends an object to non-transactional queue referenced by this MessageQueue. |
Send(Object, MessageQueueTransaction) |
Sends an object to the transactional queue referenced by this MessageQueue. |
Send(Object, MessageQueueTransactionType) |
Sends an object to the queue referenced by this MessageQueue. |
Send(Object, String) |
Sends an object to the non-transactional queue referenced by this MessageQueue and specifies a label for the message. |
Send(Object, String, MessageQueueTransaction) |
Sends an object to the transactional queue referenced by this MessageQueue and specifies a label for the message. |
Send(Object, String, MessageQueueTransactionType) |
Sends an object to the queue referenced by this MessageQueue and specifies a label for the message. |
Send(Object)
Sends an object to non-transactional queue referenced by this MessageQueue.
public:
void Send(System::Object ^ obj);
public void Send (object obj);
member this.Send : obj -> unit
Public Sub Send (obj As Object)
Parameters
- obj
- Object
The object to send to the queue.
Exceptions
Examples
The following code example connects to a message queue and sends a message to the queue.
#using <system.dll>
#using <system.messaging.dll.>
using namespace System;
using namespace System::Messaging;
ref class MyNewQueue
{
public:
void SendMessage()
{
// Connect to a queue on the local computer.
MessageQueue^ myQueue = gcnew MessageQueue( ".\\myQueue" );
// Send a message to the queue.
if ( myQueue->Transactional )
{
// Create a transaction.
MessageQueueTransaction^ myTransaction = gcnew MessageQueueTransaction;
// Begin the transaction.
myTransaction->Begin();
// Send the message.
myQueue->Send( "My Message Data.", myTransaction );
// Commit the transaction.
myTransaction->Commit();
}
else
{
myQueue->Send( "My Message Data." );
}
return;
}
};
int main()
{
// Create a new instance of the class.
MyNewQueue^ myNewQueue = gcnew MyNewQueue;
// Send a message to a queue.
myNewQueue->SendMessage();
return 0;
}
using System;
using System.Messaging;
namespace MyProject
{
/// <summary>
/// Provides a container class for the example.
/// </summary>
public class MyNewQueue
{
//**************************************************
// Provides an entry point into the application.
//
// This example sends a message to a queue.
//**************************************************
public static void Main()
{
// Create a new instance of the class.
MyNewQueue myNewQueue = new MyNewQueue();
// Send a message to a queue.
myNewQueue.SendMessage();
return;
}
//**************************************************
// Sends a message to a queue.
//**************************************************
public void SendMessage()
{
// Connect to a queue on the local computer.
MessageQueue myQueue = new MessageQueue(".\\myQueue");
// Send a message to the queue.
if (myQueue.Transactional)
{
// Create a transaction.
MessageQueueTransaction myTransaction = new
MessageQueueTransaction();
// Begin the transaction.
myTransaction.Begin();
// Send the message.
myQueue.Send("My Message Data.", myTransaction);
// Commit the transaction.
myTransaction.Commit();
}
else
{
myQueue.Send("My Message Data.");
}
return;
}
}
}
Imports System.Messaging
Public Class MyNewQueue
'
' Provides an entry point into the application.
'
' This example sends a message to a queue.
'
Public Shared Sub Main()
' Create a new instance of the class.
Dim myNewQueue As New MyNewQueue
' Send a message to a queue.
myNewQueue.SendMessage()
Return
End Sub
'
' Sends a message to a queue.
'
Public Sub SendMessage()
' Connect to a queue on the local computer.
Dim myQueue As New MessageQueue(".\myQueue")
' Send a message to the queue.
If myQueue.Transactional = True Then
' Create a transaction.
Dim myTransaction As New MessageQueueTransaction
' Begin the transaction.
myTransaction.Begin()
' Send the message.
myQueue.Send("My Message Data.", myTransaction)
' Commit the transaction.
myTransaction.Commit()
Else
myQueue.Send("My Message Data.")
End If
Return
End Sub
End Class
The following code example sends an application-defined Order
class to a queue and then receives a message from that queue.
Remarks
Use this overload to send a message that contains the obj
parameter to the queue referenced by the MessageQueue. The object you send to the queue can be a Message or any managed object. If you send any object other than a Message, the object is serialized and inserted into the body of the message.
If you use this overload to send a message to a transactional queue, the message will be sent to the dead-letter queue. If you want the message to be part of a transaction that contains other messages, use an overload that takes a MessageQueueTransaction or MessageQueueTransactionType as a parameter.
If you do not set the Formatter property before calling Send(Object), the formatter defaults to the XmlMessageFormatter.
The DefaultPropertiesToSend property applies to any object other than a Message. If you specify, for example, a label or a priority using the DefaultPropertiesToSend member, these values apply to any message that contains an object that is not of type Message when your application sends it to the queue. When sending a Message, the property values set for the Message take precedence over DefaultPropertiesToSend and the message's Message.Formatter property takes precedence over the queue's MessageQueue.Formatter property.
The following table shows whether this method is available in various Workgroup modes.
Workgroup mode | Available |
---|---|
Local computer | Yes |
Local computer and direct format name | Yes |
Remote computer | No |
Remote computer and direct format name | Yes |
See also
Applies to
Send(Object, MessageQueueTransaction)
Sends an object to the transactional queue referenced by this MessageQueue.
public:
void Send(System::Object ^ obj, System::Messaging::MessageQueueTransaction ^ transaction);
public void Send (object obj, System.Messaging.MessageQueueTransaction transaction);
member this.Send : obj * System.Messaging.MessageQueueTransaction -> unit
Public Sub Send (obj As Object, transaction As MessageQueueTransaction)
Parameters
- obj
- Object
The object to send to the queue.
- transaction
- MessageQueueTransaction
The MessageQueueTransaction object.
Exceptions
The transaction
parameter is null
.
The Path property has not been set.
-or-
The Message Queuing application indicated an incorrect transaction use.
-or-
An error occurred when accessing a Message Queuing method.
Examples
The following code example sends a string to a transactional queue and then receives a message from that queue.
#using <system.dll>
#using <system.messaging.dll>
using namespace System;
using namespace System::Messaging;
/// <summary>
/// Provides a container class for the example.
/// </summary>
ref class MyNewQueue
{
public:
//*************************************************
// Sends a message to a queue.
//*************************************************
void SendMessageTransactional()
{
// Connect to a queue on the local computer.
MessageQueue^ myQueue = gcnew MessageQueue( ".\\myTransactionalQueue" );
// Send a message to the queue.
if ( myQueue->Transactional )
{
// Create a transaction.
MessageQueueTransaction^ myTransaction = gcnew MessageQueueTransaction;
// Begin the transaction.
myTransaction->Begin();
// Send the message.
myQueue->Send( "My Message Data.", myTransaction );
// Commit the transaction.
myTransaction->Commit();
}
return;
}
//*************************************************
// Receives a message containing an Order.
//*************************************************
void ReceiveMessageTransactional()
{
// Connect to a transactional queue on the local computer.
MessageQueue^ myQueue = gcnew MessageQueue( ".\\myTransactionalQueue" );
// Set the formatter.
array<Type^>^p = gcnew array<Type^>(1);
p[ 0 ] = String::typeid;
myQueue->Formatter = gcnew XmlMessageFormatter( p );
// Create a transaction.
MessageQueueTransaction^ myTransaction = gcnew MessageQueueTransaction;
try
{
// Begin the transaction.
myTransaction->Begin();
// Receive the message.
Message^ myMessage = myQueue->Receive( myTransaction );
String^ myOrder = static_cast<String^>(myMessage->Body);
// Display message information.
Console::WriteLine( myOrder );
// Commit the transaction.
myTransaction->Commit();
}
catch ( MessageQueueException^ e )
{
// Handle nontransactional queues.
if ( e->MessageQueueErrorCode == MessageQueueErrorCode::TransactionUsage )
{
Console::WriteLine( "Queue is not transactional." );
}
// Else catch other sources of MessageQueueException.
// Roll back the transaction.
myTransaction->Abort();
}
// Catch other exceptions as necessary, such as
// InvalidOperationException, thrown when the formatter
// cannot deserialize the message.
return;
}
};
//*************************************************
// Provides an entry point into the application.
//
// This example sends and receives a message from
// a transactional queue.
//*************************************************
int main()
{
// Create a new instance of the class.
MyNewQueue^ myNewQueue = gcnew MyNewQueue;
// Send a message to a queue.
myNewQueue->SendMessageTransactional();
// Receive a message from a queue.
myNewQueue->ReceiveMessageTransactional();
return 0;
}
using System;
using System.Messaging;
namespace MyProject
{
/// <summary>
/// Provides a container class for the example.
/// </summary>
public class MyNewQueue
{
//**************************************************
// Provides an entry point into the application.
//
// This example sends and receives a message from
// a transactional queue.
//**************************************************
public static void Main()
{
// Create a new instance of the class.
MyNewQueue myNewQueue = new MyNewQueue();
// Send a message to a queue.
myNewQueue.SendMessageTransactional();
// Receive a message from a queue.
myNewQueue.ReceiveMessageTransactional();
return;
}
//**************************************************
// Sends a message to a queue.
//**************************************************
public void SendMessageTransactional()
{
// Connect to a queue on the local computer.
MessageQueue myQueue = new
MessageQueue(".\\myTransactionalQueue");
// Send a message to the queue.
if (myQueue.Transactional)
{
// Create a transaction.
MessageQueueTransaction myTransaction = new
MessageQueueTransaction();
// Begin the transaction.
myTransaction.Begin();
// Send the message.
myQueue.Send("My Message Data.", myTransaction);
// Commit the transaction.
myTransaction.Commit();
}
return;
}
//**************************************************
// Receives a message containing an Order.
//**************************************************
public void ReceiveMessageTransactional()
{
// Connect to a transactional queue on the local computer.
MessageQueue myQueue = new
MessageQueue(".\\myTransactionalQueue");
// Set the formatter.
myQueue.Formatter = new XmlMessageFormatter(new Type[]
{typeof(String)});
// Create a transaction.
MessageQueueTransaction myTransaction = new
MessageQueueTransaction();
try
{
// Begin the transaction.
myTransaction.Begin();
// Receive the message.
Message myMessage = myQueue.Receive(myTransaction);
String myOrder = (String)myMessage.Body;
// Display message information.
Console.WriteLine(myOrder);
// Commit the transaction.
myTransaction.Commit();
}
catch (MessageQueueException e)
{
// Handle nontransactional queues.
if (e.MessageQueueErrorCode ==
MessageQueueErrorCode.TransactionUsage)
{
Console.WriteLine("Queue is not transactional.");
}
// Else catch other sources of MessageQueueException.
// Roll back the transaction.
myTransaction.Abort();
}
// Catch other exceptions as necessary, such as
// InvalidOperationException, thrown when the formatter
// cannot deserialize the message.
return;
}
}
}
Imports System.Messaging
Public Class MyNewQueue
'
' Provides an entry point into the application.
'
' This example sends and receives a message from
' a transactional queue.
'
Public Shared Sub Main()
' Create a new instance of the class.
Dim myNewQueue As New MyNewQueue
' Send a message to a queue.
myNewQueue.SendMessageTransactional()
' Receive a message from a queue.
myNewQueue.ReceiveMessageTransactional()
Return
End Sub
'
' Sends a message to a queue.
'
Public Sub SendMessageTransactional()
' Connect to a queue on the local computer.
Dim myQueue As New MessageQueue(".\myTransactionalQueue")
' Send a message to the queue.
If myQueue.Transactional = True Then
' Create a transaction.
Dim myTransaction As New MessageQueueTransaction
' Begin the transaction.
myTransaction.Begin()
' Send the message.
myQueue.Send("My Message Data.", myTransaction)
' Commit the transaction.
myTransaction.Commit()
End If
Return
End Sub
'
' Receives a message containing an Order.
'
Public Sub ReceiveMessageTransactional()
' Connect to a transactional queue on the local computer.
Dim myQueue As New MessageQueue(".\myTransactionalQueue")
' Set the formatter.
myQueue.Formatter = New XmlMessageFormatter(New Type() _
{GetType([String])})
' Create a transaction.
Dim myTransaction As New MessageQueueTransaction
Try
' Begin the transaction.
myTransaction.Begin()
' Receive the message.
Dim myMessage As Message = _
myQueue.Receive(myTransaction)
Dim myOrder As [String] = CType(myMessage.Body, _
[String])
' Display message information.
Console.WriteLine(myOrder)
' Commit the transaction.
myTransaction.Commit()
Catch e As MessageQueueException
' Handle nontransactional queues.
If e.MessageQueueErrorCode = _
MessageQueueErrorCode.TransactionUsage Then
Console.WriteLine("Queue is not transactional.")
End If
' Else catch other sources of a MessageQueueException.
' Roll back the transaction.
myTransaction.Abort()
' Catch other exceptions as necessary, such as
' InvalidOperationException, thrown when the formatter
' cannot deserialize the message.
End Try
Return
End Sub
End Class
Remarks
Use this overload to send a message that contains the obj
parameter to the transactional queue referenced by the MessageQueue, using an internal transaction context defined by the transaction
parameter. The object you send to the queue can be a Message or any managed object. If you send any object other than a Message, the object is serialized and inserted into the body of the message.
If you use this overload to send a message to a non-transactional queue, the message might be sent to the dead-letter queue without throwing an exception.
If you do not set the Formatter property before calling Send(Object), the formatter defaults to the XmlMessageFormatter.
The DefaultPropertiesToSend property applies to any object other than a Message. If you specify, for example, a label or a priority using the DefaultPropertiesToSend member, these values apply to any message that contains an object that is not of type Message when your application sends it to the queue. When sending a Message, the property values set for the Message take precedence over DefaultPropertiesToSend and the message's Message.Formatter property takes precedence over the queue's MessageQueue.Formatter property.
MessageQueueTransaction is threading apartment aware, so if your apartment state is STA
, you cannot use the transaction in multiple threads. Visual Basic sets the state of the main thread to STA
, so you must apply the MTAThreadAttribute in the Main
subroutine. Otherwise, sending a transactional message using another thread throws a MessageQueueException exception. You apply the MTAThreadAttribute by using the following fragment.
<System.MTAThreadAttribute>
public sub Main()
The following table shows whether this method is available in various Workgroup modes.
Workgroup mode | Available |
---|---|
Local computer | Yes |
Local computer and direct format name | Yes |
Remote computer | No |
Remote computer and direct format name | Yes |
See also
- DefaultPropertiesToSend
- Message
- MessageQueueTransaction
- Transactional
- Peek()
- Receive()
- BeginPeek()
- BeginReceive()
Applies to
Send(Object, MessageQueueTransactionType)
Sends an object to the queue referenced by this MessageQueue.
public:
void Send(System::Object ^ obj, System::Messaging::MessageQueueTransactionType transactionType);
public void Send (object obj, System.Messaging.MessageQueueTransactionType transactionType);
member this.Send : obj * System.Messaging.MessageQueueTransactionType -> unit
Public Sub Send (obj As Object, transactionType As MessageQueueTransactionType)
Parameters
- obj
- Object
The object to send to the queue.
- transactionType
- MessageQueueTransactionType
One of the MessageQueueTransactionType values, describing the type of transaction context to associate with the message.
Exceptions
The transactionType
parameter is not one of the MessageQueueTransactionType members.
Examples
The following code example demonstrates the use of Send(Object, MessageQueueTransactionType).
// Connect to a transactional queue on the local computer.
MessageQueue^ queue = gcnew MessageQueue(".\\exampleTransQueue");
// Create a new message.
Message^ msg = gcnew Message("Example Message Body");
// Send the message.
queue->Send(msg, MessageQueueTransactionType::Single);
queue->Close();
// Connect to a transactional queue on the local computer.
MessageQueue queue = new MessageQueue(".\\exampleTransQueue");
// Create a new message.
Message msg = new Message("Example Message Body");
// Send the message.
queue.Send(msg, MessageQueueTransactionType.Single);
Remarks
Use this overload to send a message that contains the obj
parameter to the queue referenced by the MessageQueue, using a transaction context defined by the transactionType
parameter. Specify Automatic
for the transactionType
parameter if there is already an external transaction context attached to the thread that you want to use to send the message. Specify Single
if you want to send the message as a single internal transaction. You can specify None
if you want to send a transactional message to a non-transactional thread.
The object you send to the queue can be a Message or any managed object. If you send any object other than a Message, the object is serialized and inserted into the body of the message.
If you do not set the Formatter property before calling Send(Object), the formatter defaults to the XmlMessageFormatter.
The DefaultPropertiesToSend property applies to any object other than a Message. If you specify, for example, a label or a priority using the DefaultPropertiesToSend member, these values apply to any message that contains an object that is not of type Message when your application sends it to the queue. When sending a Message, the property values set for the Message take precedence over DefaultPropertiesToSend and the message's Message.Formatter property takes precedence over the queue's MessageQueue.Formatter property.
The following table shows whether this method is available in various Workgroup modes.
Workgroup mode | Available |
---|---|
Local computer | Yes |
Local computer and direct format name | Yes |
Remote computer | No |
Remote computer and direct format name | Yes |
See also
- MessageQueueTransactionType
- DefaultPropertiesToSend
- Message
- Transactional
- Peek()
- Receive()
- BeginPeek()
- BeginReceive()
Applies to
Send(Object, String)
Sends an object to the non-transactional queue referenced by this MessageQueue and specifies a label for the message.
public:
void Send(System::Object ^ obj, System::String ^ label);
public void Send (object obj, string label);
member this.Send : obj * string -> unit
Public Sub Send (obj As Object, label As String)
Parameters
- obj
- Object
The object to send to the queue.
- label
- String
The label of the message.
Exceptions
The label
parameter is null
.
Examples
The following code example demonstrates the use of Send(Object, String).
// Connect to a queue on the local computer.
MessageQueue^ queue = gcnew MessageQueue(".\\exampleQueue");
// Create a new message.
Message^ msg = gcnew Message("Example Message Body");
// Send the message.
queue->Send(msg, "Example Message Label");
queue->Close();
// Connect to a queue on the local computer.
MessageQueue queue = new MessageQueue(".\\exampleQueue");
// Create a new message.
Message msg = new Message("Example Message Body");
// Send the message.
queue.Send(msg, "Example Message Label");
Remarks
Use this overload to send a message that contains the obj
parameter to the queue referenced by the MessageQueue. With this overload, you can specify the string label that identifies the message. The object you send to the queue can be a Message, a structure, a data object, or any managed object. If you send any object other than a Message, the object is serialized and inserted into the body of the message.
The message label is distinct from the message queue label, but both are application-dependent and have no inherit meaning to Message Queuing.
If you use this overload to send a message to a transactional queue, the message will be sent to the dead-letter queue. If you want the message to be part of a transaction that contains other messages, use an overload that takes a MessageQueueTransaction or MessageQueueTransactionType as a parameter.
The Path property for this MessageQueue instance must be specified before you send the message. If you do not set the Formatter property before calling Send(Object), the formatter defaults to the XmlMessageFormatter.
The DefaultPropertiesToSend property applies to any object other than a Message. If you specify, for example, a label or a priority using the DefaultPropertiesToSend member, these values apply to any message that contains an object that is not of type Message when your application sends it to the queue. When sending a Message, the property values set for the Message take precedence over DefaultPropertiesToSend and the message's Message.Formatter property takes precedence over the queue's MessageQueue.Formatter property.
The following table shows whether this method is available in various Workgroup modes.
Workgroup mode | Available |
---|---|
Local computer | Yes |
Local computer and direct format name | Yes |
Remote computer | No |
Remote computer and direct format name | Yes |
See also
Applies to
Send(Object, String, MessageQueueTransaction)
Sends an object to the transactional queue referenced by this MessageQueue and specifies a label for the message.
public:
void Send(System::Object ^ obj, System::String ^ label, System::Messaging::MessageQueueTransaction ^ transaction);
public void Send (object obj, string label, System.Messaging.MessageQueueTransaction transaction);
member this.Send : obj * string * System.Messaging.MessageQueueTransaction -> unit
Public Sub Send (obj As Object, label As String, transaction As MessageQueueTransaction)
Parameters
- obj
- Object
The object to send to the queue.
- label
- String
The label of the message.
- transaction
- MessageQueueTransaction
The MessageQueueTransaction object.
Exceptions
The Path property has not been set.
-or-
The Message Queuing application indicated an incorrect transaction usage.
-or-
An error occurred when accessing a Message Queuing method.
Examples
The following code example demonstrates the use of Send(Object, String, MessageQueueTransaction).
// Connect to a transactional queue on the local computer.
MessageQueue^ queue = gcnew MessageQueue(".\\exampleTransQueue");
// Create a new message.
Message^ msg = gcnew Message("Example Message Body");
// Create a message queuing transaction.
MessageQueueTransaction^ transaction = gcnew MessageQueueTransaction();
try
{
// Begin a transaction.
transaction->Begin();
// Send the message to the queue.
queue->Send(msg, "Example Message Label", transaction);
// Commit the transaction.
transaction->Commit();
}
catch (Exception^ ex)
{
// Cancel the transaction.
transaction->Abort();
// Propagate the exception.
throw ex;
}
finally
{
// Dispose of the transaction object.
delete transaction;
queue->Close();
}
// Connect to a transactional queue on the local computer.
MessageQueue queue = new MessageQueue(".\\exampleTransQueue");
// Create a new message.
Message msg = new Message("Example Message Body");
// Create a message queuing transaction.
MessageQueueTransaction transaction = new MessageQueueTransaction();
try
{
// Begin a transaction.
transaction.Begin();
// Send the message to the queue.
queue.Send(msg, "Example Message Label", transaction);
// Commit the transaction.
transaction.Commit();
}
catch(System.Exception e)
{
// Cancel the transaction.
transaction.Abort();
// Propagate the exception.
throw e;
}
finally
{
// Dispose of the transaction object.
transaction.Dispose();
}
Remarks
Use this overload to send a message that contains the obj
parameter to the transactional queue referenced by the MessageQueue, using an internal transaction context defined by the transaction
parameter. With this overload, you can specify the string label that identifies the message. The object you send to the queue can be a Message, a structure, a data object, or any managed object. If you send any object other than a Message, the object is serialized and inserted into the body of the message.
The message label is distinct from the message queue label, but both are application-dependent and have no inherit meaning to Message Queuing.
If you use this overload to send a message to a non-transactional queue, the message might be sent to the dead-letter queue without throwing an exception.
If you do not set the Formatter property before calling Send(Object), the formatter defaults to the XmlMessageFormatter.
The DefaultPropertiesToSend property applies to any object other than a Message. If you specify, for example, a label or a priority using the DefaultPropertiesToSend member, these values apply to any message that contains an object that is not of type Message when your application sends it to the queue. When sending a Message, the property values set for the Message take precedence over DefaultPropertiesToSend and the message's Message.Formatter property takes precedence over the queue's MessageQueue.Formatter property
MessageQueueTransaction is threading apartment aware, so if your apartment state is STA
, you cannot use the transaction in multiple threads. Visual Basic sets the state of the main thread to STA
, so you must apply the MTAThreadAttribute in the Main
subroutine. Otherwise, sending a transactional message using another thread throws a MessageQueueException exception. You apply the MTAThreadAttribute by using the following fragment.
<System.MTAThreadAttribute>
public sub Main()
The following table shows whether this method is available in various Workgroup modes.
Workgroup mode | Available |
---|---|
Local computer | Yes |
Local computer and direct format name | Yes |
Remote computer | No |
Remote computer and direct format name | Yes |
See also
- DefaultPropertiesToSend
- Message
- MessageQueueTransaction
- Transactional
- Label
- Peek()
- Receive()
- BeginPeek()
- BeginReceive()
Applies to
Send(Object, String, MessageQueueTransactionType)
Sends an object to the queue referenced by this MessageQueue and specifies a label for the message.
public:
void Send(System::Object ^ obj, System::String ^ label, System::Messaging::MessageQueueTransactionType transactionType);
public void Send (object obj, string label, System.Messaging.MessageQueueTransactionType transactionType);
member this.Send : obj * string * System.Messaging.MessageQueueTransactionType -> unit
Public Sub Send (obj As Object, label As String, transactionType As MessageQueueTransactionType)
Parameters
- obj
- Object
The object to send to the queue.
- label
- String
The label of the message.
- transactionType
- MessageQueueTransactionType
One of the MessageQueueTransactionType values, describing the type of transaction context to associate with the message.
Exceptions
The label
parameter is null
.
The Message Queuing application indicated an incorrect transaction usage.
The transactionType
parameter is not one of the MessageQueueTransactionType members.
Examples
The following code example demonstrates the use of Send(Object, String, MessageQueueTransactionType).
// Connect to a transactional queue on the local computer.
MessageQueue^ queue = gcnew MessageQueue(".\\exampleTransQueue");
// Create a new message.
Message^ msg = gcnew Message("Example Message Body");
// Send the message.
queue->Send(msg, "Example Message Label",
MessageQueueTransactionType::Single);
queue->Close();
// Connect to a transactional queue on the local computer.
MessageQueue queue = new MessageQueue(".\\exampleTransQueue");
// Create a new message.
Message msg = new Message("Example Message Body");
// Send the message.
queue.Send(msg, "Example Message Label",
MessageQueueTransactionType.Single);
Remarks
Use this overload to send a message that contains the obj
parameter to the queue referenced by the MessageQueue, using a transaction context defined by the transactionType
parameter. Specify Automatic
for the transactionType
parameter if there is already an external transaction context attached to the thread that you want to use to send the message. Specify Single
if you want to send the message as a single internal transaction. You can specify None
if you want to send a transactional message to a non-transactional thread.
The object you send to the queue can be a Message or any managed object. If you send any object other than a Message, the object is serialized and inserted into the body of the message. With this overload, you can specify the string label that identifies the message.
The message label is distinct from the message queue label, but both are application-dependent and have no inherit meaning to Message Queuing.
If you do not set the Formatter property before calling Send(Object), the formatter defaults to the XmlMessageFormatter.
The DefaultPropertiesToSend property applies to any object other than a Message. If you specify, for example, a label or a priority using the DefaultPropertiesToSend member, these values apply to any message that contains an object that is not of type Message when your application sends it to the queue. When sending a Message, the property values set for the Message take precedence over DefaultPropertiesToSend, and the message's Message.Formatter property takes precedence over the queue's MessageQueue.Formatter property.
The following table shows whether this method is available in various Workgroup modes.
Workgroup mode | Available |
---|---|
Local computer | Yes |
Local computer and direct format name | Yes |
Remote computer | No |
Remote computer and direct format name | Yes |
See also
- MessageQueueTransactionType
- DefaultPropertiesToSend
- Message
- Transactional
- Label
- Peek()
- Receive()
- BeginPeek()
- BeginReceive()