MessageQueueException Class

Definition

Namespace:

System.Messaging

Assembly:

System.Messaging.dll

The exception that is thrown if a Microsoft Message Queuing internal error occurs.

public ref class MessageQueueException : System::Runtime::InteropServices::ExternalException

[System.Serializable]
public class MessageQueueException : System.Runtime.InteropServices.ExternalException

[<System.Serializable>]
type MessageQueueException = class
    inherit ExternalException
    interface ISerializable

Public Class MessageQueueException
Inherits ExternalException

Inheritance

Object

Exception

SystemException

ExternalException

MessageQueueException

Attributes

SerializableAttribute

Implements

ISerializable

Examples

#using <system.dll>
#using <system.messaging.dll>

using namespace System;
using namespace System::Messaging;
int main()
{
   
   // Determine whether the queue exists.
   if ( MessageQueue::Exists( ".\\myQueue" ) )
   {
      try
      {
         
         // Delete the queue.
         MessageQueue::Delete( ".\\myQueue" );
      }
      catch ( MessageQueueException^ e ) 
      {
         if ( e->MessageQueueErrorCode == MessageQueueErrorCode::AccessDenied )
         {
            Console::WriteLine( "Access is denied. Queue might be a system queue." );
         }
         
         // Handle other sources of MessageQueueException.
      }

   }

   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 verifies existence and attempts to
        // delete a queue.
        //**************************************************

        public static void Main()
        {

            // Determine whether the queue exists.
            if (MessageQueue.Exists(".\\myQueue"))
            {
                try
                {
                    // Delete the queue.
                    MessageQueue.Delete(".\\myQueue");
                }
                catch(MessageQueueException e)
                {
                    if(e.MessageQueueErrorCode ==
                        MessageQueueErrorCode.AccessDenied)
                    {
                        Console.WriteLine("Access is denied. " +
                            "Queue might be a system queue.");
                    }

                    // Handle other sources of MessageQueueException.
                }
            }
        
            return;
        }
    }
}

Imports System.Messaging



Public Class MyNewQueue


        
        ' Provides an entry point into the application.
        '		 
        ' This example verifies existence and attempts to 
        ' delete a queue.
        

        Public Shared Sub Main()

            ' Determine whether the queue exists.
            If MessageQueue.Exists(".\myQueue") Then

                Try

                    ' Delete the queue.
                    MessageQueue.Delete(".\myQueue")

                Catch e As MessageQueueException

                    If e.MessageQueueErrorCode = _
                        MessageQueueErrorCode.AccessDenied Then

                        Console.WriteLine("Access is denied. " _
                            + "Queue might be a system queue.")
                    End If

                    ' Handle other sources of exceptions as necessary.

                End Try

            End If


            Return

        End Sub

End Class

Remarks

Exceptions associated with the MessageQueueException class are generated by internal errors within Message Queuing that should be dealt with through your code.

Every exception consists of an error code and a text string that describes the source of the error. See the MessageQueueErrorCode class for a list of these error codes and their descriptions.

If a MessageQueue opens a queue with the sharedModeDenyReceive parameter set to true, any MessageQueue that subsequently tries to read from the queue generates a MessageQueueException exception because of a sharing violation. The same exception is thrown if a MessageQueue tries to access the queue in exclusive mode while another MessageQueue already has nonexclusive access to the queue.

alert tag is not supported!!!!
MessageQueueTransaction is threading-apartment-aware. 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.

Constructors

MessageQueueException(SerializationInfo, StreamingContext)

Initializes a new instance of the MessageQueueException class with serialized data.

Properties

Data	Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception)
ErrorCode	Gets the HRESULT of the error. (Inherited from ExternalException)
HelpLink	Gets or sets a link to the help file associated with this exception. (Inherited from Exception)
HResult	Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception)
InnerException	Gets the Exception instance that caused the current exception. (Inherited from Exception)
Message	Gets a value that describes the Message Queuing error.
MessageQueueErrorCode	Gets a value that indicates the error code associated with this exception.
Source	Gets or sets the name of the application or the object that causes the error. (Inherited from Exception)
StackTrace	Gets a string representation of the immediate frames on the call stack. (Inherited from Exception)
TargetSite	Gets the method that throws the current exception. (Inherited from Exception)

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetBaseException()	When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext)	Populates a serialization information object with the data needed to serialize the MessageQueueException.
GetType()	Gets the runtime type of the current instance. (Inherited from Exception)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that contains the HRESULT of the error. (Inherited from ExternalException)

Events

SerializeObjectState

Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception)

See also

• MessageQueueErrorCode
• MessageQueue
• Message