Writing a custom WCF service, deploying it in SharePoint as a solution and then using it in Silverlight front end. The WCF service has access to the entire object model and it can expose custom business objects, thereby allowing scenarios such as WCF RIA services. Start Visual Studio 2010 and create a new project based on the empty SharePoint project template. Call this project CustomWCFService and require it to be a farm solution . It has to be a farm solution because we will deploy an . svc , and its . config file to the file system. In the same solution, add a new project of template type WCF service library and call it MyServiceLibrary. By default , the WCF service library project type will add a Service1 service for you. Because we don't want the default service added, go ahead and delete the IService1 . cs and Service1 . cs files. Also open the app.config for your service library, and delete everything under the system.serviceModel element. Next , right-...
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