WCF客户端计算机是否必须需要WCF服务已引用的所有DLL？

Question

Edit

Please add a reference to your answer, so I could convince my system admin. Thanks

Scenario

I have a WCF web services, which has reference to few third party dlls, eg Microsoft.SharePoint, now when I try to call web services from client machine using this code, it says Microsoft.SharePoint not found.

Problem does goes away when I add Microsoft.SharePoint to client machine's GAC, but I am failed to explain it to our System Admin as why we need to add Microsoft.SharePoint dll to client WCF machine. Can someone explain why we must need to add WCF service's referenced dlls to client machine..

BTW, I deployed WCF service by making Microsoft.SharePoint copy local but not much changes.

Here is the error, I get when I remove dll from GAC,

Description: Could not load file or assembly 'Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The system cannot find the file specified.

Server stack trace: at SourceCode.Workflow.Runtime.Extenders.CodeExtender.OnExecute(Object context, XmlElement data, ResolverManager resolverManager) at SourceCode.Workflow.Runtime.Extenders.ResolverExtenderBase.Execute(Object context, String data) at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs) at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)

Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) at SourceCode.Workflow.Runtime.IK2Extender.Execute(Object context, String data) at SourceCode.KO.ProcessInstance.ExecuteExtender(Guid , State , ContextType , Object , Int32 , String , Guid )An exception was thrown during execution of a K2 workflow. This process instance is now in an error state. The details of the exception are listed below.

Code

System.Net.NetworkCredential creds = GetNetWorkCredentials();
   BasicHttpBinding binding = new BasicHttpBinding();
   binding.Security.Mode = BasicHttpSecurityMode.Transport;
   binding.Security.Transport.ClientCredentialType = creds.httpClientCredentialType;
   ChannelFactory<Portal.WebServices.Internal.IPort> factory = new ChannelFactory<Portal.WebServices.Internal.IPort>(binding);
   factory.Credentials.Windows.ClientCredential = creds;
   factory.Credentials.UserName.UserName = creds.UserName;
   factory.Credentials.UserName.Password = creds.Password;
   Portal.WebServices.Internal.IPort proxy = factory.CreateChannel(new EndpointAddress(siteURL + "/_vti_bin/portal/Port.svc"));
   Portal.WebServices.Internal.FewObject[] invoices = proxy.GetInvoices(IDs);

Answer 1

You don't need to add Dlls you add to a WCF service to a client server, but only when you add an object to it's interface.

One of workmate added an OperationContract as below,

[OperationContract]
    void AddEventReceiver(string siteUrl, string listName, string assemblyName, string className, SPEventReceiverType receiverType);

WCF service was failing because it couldn't compile referenced object in the interface, in my case "SPEventReceiverType".

So make sure you add object references to client machines if they are not generic types.