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MessageQueue.MaximumQueueSize Property

.NET Framework 4

Other Versions

Gets or sets the maximum size of the queue.

Namespace: System.Messaging
Assembly: System.Messaging (in System.Messaging.dll)

Syntax

C++

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[MessagingDescriptionAttribute("MQ_MaximumQueueSize")]
public long MaximumQueueSize { get; set; }

Property Value

Type: System.Int64
The maximum size, in kilobytes, of the queue. The Message Queuing default specifies that no limit exists.

Exceptions

Exception	Condition
ArgumentException	The maximum queue size contains a negative value.
MessageQueueException	An error occurred when accessing a Message Queuing method.

Remarks

The MaximumQueueSize provides access to the Message Queuing message storage limit, which is separate from the computer's message quota that the administrator defines. For more information about the message quota, see MaximumJournalSize.

Setting this property modifies the Message Queuing queue. Therefore, any other MessageQueue instances are affected by the change

If an attempt is made to exceed either the maximum queue size or the computer message quota, messages might be lost. When the queue quota is reached, Message Queuing notifies the administration queue of the sending application to indicate that the queue is full, by returning a negative acknowledgment message. Message Queuing continues to send negative acknowledgments until the total size of the messages in the queue drops below the limit.

The following table shows whether this property 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	No

Examples

The following code example gets and sets the value of a message queue's MaximumQueueSize property.

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// Set the queue's MaximumQueueSize property value.
queue.MaximumQueueSize = 10;

// Display the new value of the queue's MaximumQueueSize property.
Console.WriteLine("MessageQueue.MaximumQueueSize: {0}",
    queue.MaximumQueueSize);

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

MessageQueue Class

System.Messaging Namespace

MaximumJournalSize

InfiniteQueueSize

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