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BasicHttpBinding.MaxReceivedMessageSize Property

Gets or sets the maximum size for a message that can be received on a channel configured with this binding.

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

Public Property MaxReceivedMessageSize As Long
Dim instance As BasicHttpBinding 
Dim value As Long 

value = instance.MaxReceivedMessageSize

instance.MaxReceivedMessageSize = value

Property Value

Type: System.Int64
The maximum size, in bytes, for a message that is processed by the binding. The default value is 65,536 bytes.


The value is less than zero.

The size of the messages that can be received on the wire by services using the BasicHttpBinding is bounded by the amount of memory allocated for each message. This bound on message size is intended to limit exposure to DoS-style attacks.

There is also a MaxBufferSize property on the BasicHttpBinding:

  • For buffered transports, (TransferMode set to Buffered). This value is always equal to that specified by the MaxReceivedMessageSize.

  • For streamed transports (TransferMode set to Streamed), only the SOAP headers must be buffered to generate the message. The body can be streamed in on-demand. In this case, MaxBufferSize is less than or equal to MaxReceivedMessageSize, where MaxReceivedMessageSize bounds the size of the overall message (headers and body) and MaxBufferSize bounds the size of the SOAP headers.

The following example sets MaxReceivedMessageSize to 1,000,000 bytes.

		    BasicHttpBinding binding = new BasicHttpBinding();
		    // Use double the default value
		    binding.MaxReceivedMessageSize = 65536 * 2;

The value of this property can also be set in the configuration file.


        <binding name="Binding1"
                 maxReceivedMessageSize = "1000000">
          <security mode="None" />



Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Framework

Supported in: 3.5, 3.0

.NET Compact Framework

Supported in: 3.5