Tuesday, February 8, 2011

WCF: Programmatically set dataContractSerializer's maxItemsInObjectGraph value

When programmtically setting up a WCF Client, one often have to set the dataContractSerializer's maxItemsInObjectGraph parameter (within the serviceBehaviors) to a higher value than the default 65536.

I struggled a bit to find this one on-line, but finally came across a solution on here.

Here's the way to do it:
foreach (OperationDescription operation in myClient.Contract.Operations)
   operation.Behaviors.Find<DataContractSerializerOperationBehavior>().MaxItemsInObjectGraph = 2147483646;

Where the myClient object is an instance of the ServiceClient.

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