微软同步框架(MSF)入门之八--使用WCF同步远程元数据(一)

其中的代理程序参见如下：

public class RemoteProviderProxy : KnowledgeSyncProvider
    {
        private SyncIdFormatGroup idFormats;
        private Sync101WebServiceClient client;
        private SyncSessionContext syncSessionContext;
        private string folderPath;
        private string storeName;
        private string endpointConfigurationName;
        public RemoteProviderProxy(
            string folderPath,
            string storeName,
            string endpointConfigurationName)
        {
            this.folderPath = folderPath;
            this.storeName = storeName;
            this.endpointConfigurationName = endpointConfigurationName;
            // Create a client
            this.client = new Sync101WebServiceClient(
                endpointConfigurationName);
            this.client.CreateProviderForSyncSession(folderPath, this.storeName);
            this.idFormats = this.client.GetIdFormats();
        }
        public override SyncIdFormatGroup IdFormats
        {
            get
            {
                return this.idFormats;
            }
        }
        public override void BeginSession(
            SyncProviderPosition position,
            SyncSessionContext syncSessionContext)
        {
            if (this.client == null)
            {
                // Allow for the same proxy to be use in several unidirectional session
                this.client = new Sync101WebServiceClient(
                    endpointConfigurationName);
                this.client.CreateProviderForSyncSession(folderPath, this.storeName);
            }
            this.syncSessionContext = syncSessionContext;
            this.client.BeginSession();
        }
        public override void EndSession(