WCF OperationContract

Question

What is a WCF OperationContract? I dont really understand what it does

score 43 · Accepted Answer · answered Aug 13 '12 at 20:05

43

WCF uses an opt-in model to define what belongs to one of its contracts. In a service contract interface, only methods decorated with [OperationContract] are exposed to the client. That means that, in the interface below, if used within a WCF service, a client could call both Add and Subtract operations, but not Multiply.

[ServiceContract]
public interface ICalculator
{
    [OperationContract]
    int Add(int x, int y);

    [OperationContract]
    int Subtract(int x, int y);

    // Not decorated
    int Multiply(int x, int y);
}

answered Aug 13 '12 at 20:05

carlosfigueira

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Well, Like I need all methods to be accessed by client, and I don't want to write that on every method, what do I do there? – Waqas Sep 15 '14 at 08:57
See https://stackoverflow.com/questions/18721554/how-to-apply-operationcontract-to-all-methods-in-interface – hmiedema9 Nov 02 '18 at 17:20

score 6 · Answer 2 · answered Jun 01 '13 at 23:27

6

Every method you want to be able to the user calling from his client side must be declared like that.

answered Jun 01 '13 at 23:27

Bruno Willian

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WCF OperationContract

2 Answers2