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Editorial Team
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Asked: 2026-06-04T18:15:32+00:00

Normally you check incoming parameters in your public methods using if-then-throw pattern or Code

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Normally you check incoming parameters in your public methods using if-then-throw pattern or Code Contracts.
My question is, how should I validate parameters passed in my WCF service? For example, I’ve got the following contract:

[OperationContract]
Stock GetStock(string symbol);

I want to ensure that symbolparameter is not null or empty string. Should I use the same if-then-throw pattern or Code Contracts precondition on the service-side? Should I add a FaultContract attribute to the GetStock method and return a fault to the client? What’s the best parameters validation technique for WCF service?

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1 Answer

  1. Editorial Team

    Enterprise Library Validation Application Block has an adaptor for integration with WCF designed for exactly this.

    This CodeProject Introduction is a little old but gives a bit more background than the MSDN links.

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