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When creating a WCF project, the default member files are just ordinary csharp class files, rather than svc files. Are svc files required with a WCF project? When should they be used?
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svc file contains a WCF-specific processing directive (@ServiceHost) that allows the WCF hosting infrastructure to activate hosted services in response to incoming messages. The most common syntax for a . svc file is in the following statement. It consists of the @ServiceHost directive and a single attribute, Service .
Text file that contains information about a Windows Communication Foundation (WCF) service that can be run using Microsoft Internet Information Services (IIS); includes a WCF-specific processing directive that activates hosted services in response to incoming messages.
.svc file in WXF:- asmx file in web services. In other words, WCF services hosted in IIS are represented as special content files (. svc files) inside the IIS application. This model is similar to the way ASMX pages are represented inside of an IIS application as .
Using this directive is basically equivalent to creating a service host using the following code in your self hosting console program. new ServiceHost(typeof(MyNamespace. MyServiceImplementationTypeName )); And If your self hosted application are using WCF configuration like 'endpoint', 'binding',etc in the app.
.svc files are used when you host your WCF service in IIS.
See Microsoft's doc here and here.
There's a module within IIS that handles the .svc file. Actually, it is the ASPNET ISAPI Module, which hands off the request for the .svc file to one of the handler factory types that has been configured for ASPNET, in this case
System.ServiceModel.Activation.HttpHandler, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
If you are hosting your WCF service in something other than IIS, then you don't need the .svc file.
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If you are using .net 4.0 or later, you can now "simulate" the .svc via config with the following:
<system.serviceModel> <!-- bindings, endpoints, behaviors --> <serviceHostingEnvironment > <serviceActivations> <add relativeAddress="MyService.svc" service="MyAssembly.MyService"/> </serviceActivations> </serviceHostingEnvironment> </system.serviceModel> Then you don't need a physical .svc file nor a global.asax
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