How to insert data along with file using wcf

Once see my code

ISoftwareR

public interface ISoftwareR
    {        
        [OperationContract]
        [WebInvoke(UriTemplate = "/RequestSoftware", Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped)]
        int InsertData(Request obj, RemoteFileInfo request);
    }
    [MessageContract]
    public class RemoteFileInfo : IDisposable
    {
        [MessageHeader(MustUnderstand = true)]
        public string FileName;

        [MessageHeader(MustUnderstand = true)]
        public long Length;

        [MessageBodyMember(Order = 1)]
        public System.IO.Stream FileByteStream;

        public void Dispose()
        {
            if (FileByteStream != null)
            {
                FileByteStream.Close();
                FileByteStream = null;
            }
        }
    }
 

SoftwareR

public int InsertData(Request obj, RemoteFileInfo request)
        {
            //File
            FileStream targetStream = null;
            Stream sourceStream = request.FileByteStream;

            string uploadFolder = @"C:\upload\";

            string filePath = Path.Combine(uploadFolder, request.FileName);

            using (targetStream = new FileStream(filePath, FileMode.Create,
                                  FileAccess.Write, FileShare.None))
            {
                //read from the input stream in 65000 byte chunks

                const int bufferLen = 65000;
                byte[] buffer = new byte[bufferLen];
                int count = 0;
                while ((count = sourceStream.Read(buffer, 0, bufferLen)) > 0)
                {
                    // save to output stream
                    targetStream.Write(buffer, 0, count);
                }
                targetStream.Close();
                sourceStream.Close();
            }
            //End
            int result = 0;
            SoftDATA.EDaaSDataContext ctx = new SoftDATA.EDaaSDataContext();
            Request obj2 = new Request();
            obj2.RequestID = obj.RequestID;
            obj2.CreatedDate = DateTime.Now;   

            try
            {
                ctx.Request.Add(obj2);
                //ctx.Request(obj2);
                //ctx.AddToRequest(obj2); // saving Employee data
                ctx.SaveChanges();
           
            }
            catch (Exception ex)
            {
                result = 0;
            }

            return result;
        }
Request class:

 [Table("Request")]
    public class Request
    {
        public Guid RequestID { get; set; }
        public string Name { get; set; }
        public string RequestType { get; set; }
        public Guid? RequestGlobalID { get; set; }
        public string RequestExternalID { get; set; }
        public string RequestorID { get; set; }
        public DateTime? CreatedDate { get; set; }
        public DateTime? ModifiedDate { get; set; }
        public string ModifiedBy { get; set; }
        public DateTime? DeploymentDate { get; set; }
        public DateTime? ExpirationDate { get; set; }
        public string Progress { get; set; }
        public string Status { get; set; }
        public string ActivityName { get; set; }
        public string DatacenterLocationID { get; set; }
        public int? ApplicationCatalogID { get; set; }
        public int? ApplicationInstanceID { get; set; }
        public string ServerName { get; set; }
        public string ServerFQDN { get; set; }
        public string ServerIPv4 { get; set; }
        public int? ServerID { get; set; }
        public string ServerPrimaryApp { get; set; }
        public string ServerDRClassification { get; set; }
        public string ServerDataClassification { get; set; }
        public int? ServerCPU { get; set; }
        public int? ServerRAM { get; set; }
        public Single? ServerOSBuild { get; set; }
        public string ServerOSEdition { get; set; }
        public string ServerArchitecture { get; set; }
        public int? ServerDriveC { get; set; }
        public int? ServerDriveE { get; set; }
        public int? ServerDriveF { get; set; }
        public int? ServerDriveG { get; set; }
        public string ServerEnvironment { get; set; }
        public string ServerZone { get; set; }
        public string ServerPrimaryRole { get; set; }
        public string ServerADDomain { get; set; }
        public string ServerLocalAdmins { get; set; }
        public string RequestorEmail { get; set; }
        public string CentralLocationID { get; set; }
        public string CentralApproval { get; set; }
        public string DataCenterApproval { get; set; }
        public string RequestTypeHW { get; set; }
        public int? ApplicationEnvironmentID { get; set; }

    }
EDaaSDataContext

public class EDaaSDataContext : DbContext
    {
        public EDaaSDataContext()
            : base("name=EDaaSDataContext")
        {
        }
        public DbSet<Request> Request { get; set; }
}
Onece see my code and Modify my code,

string uploadFolder = @"C:\upload\";

public string InsertData(SoftwareRequestViewModel softwareRequestViewModel,HttpPostedFileBase instanceTemplate)
        {
            if (instanceTemplate != null)
            {
                var fileName = Path.GetFileName(instanceTemplate.FileName);
                instanceTemplate.SaveAs(Server.MapPath("~/InstanceTemplate/") + fileName);
                var dt = new DataTable();
                var path = Server.MapPath("~/InstanceTemplate/" + fileName);
                dt = ExcelFile.Read(instanceTemplate, 0, 0, path, Constants.RequestMode.Software);
                if (dt.Rows.Count != 0)
                {
                    var uploadInstanceTemplateViewModel = FilterDataFromTheReturnedDatatable(dt, softwareRequestViewModel.ApplicationCatalogID);
                    var applicationInstance = new ApplicationInstance
                    {
                        ApplicationCatalogID = uploadInstanceTemplateViewModel.ApplicationCatalogId,
                        ConfigFileContent = uploadInstanceTemplateViewModel.ConfigFileContent,
                        ConfigFileDestination = uploadInstanceTemplateViewModel.ConfigFileDestination,
                        ConfigFileName = uploadInstanceTemplateViewModel.ConfigFileName,
                        Name = uploadInstanceTemplateViewModel.InstanceName
                    };
                    _softwareRequestRepository.SaveApplicationInstance(applicationInstance);
                    var serverName = softwareRequestViewModel.ServerNameFqdn;
                    string[] splittedServerName = serverName.Split('.');
                    var request = new Request
                    {
                        RequestID = Guid.NewGuid(),
                        Name = softwareRequestViewModel.RequestName,
                        RequestorID = softwareRequestViewModel.RequestorName,
                        DatacenterLocationID = softwareRequestViewModel.DataCenterLocationId,
                        RequestorEmail = softwareRequestViewModel.RequestorEmail,
                        ServerName = splittedServerName[0],
                        RequestType = Constants.RequestMode.Software.ToString(),
                        ExpirationDate = DateTime.Now.AddDays(2),
                        Progress = Constants.Progress.Queued.ToString(),
                        Status = Constants.Status.Success.ToString(),
                        ApplicationCatalogID = softwareRequestViewModel.ApplicationCatalogID,
                        ApplicationInstanceID = applicationInstance.ApplicationInstanceID,
                        ServerFQDN = softwareRequestViewModel.ServerNameFqdn,
                        CreatedDate = DateTime.Now,
                        ModifiedDate = DateTime.Now,
                        DeploymentDate = DateTime.Now,
                        ServerCPU = 0,
                        ServerRAM = 0,
                        ServerOSBuild = 0,
                        CentralApproval = "False",
                        DataCenterApproval = "False",
                        ServerArchitecture = "64-bit",
                        ServerDriveC = 0,
                        ServerDriveE = 0,
                        ServerDriveF = 0,
                        ServerDriveG = 0,
                        RequestTypeHW = "Provision",
                        ApplicationEnvironmentID = 0

                    };
                    _softwareRequestRepository.SaveSoftwareRequest(request);
                    BindDropDown();
                    return "success";
                }
                return "Please choose a valid file!!";
                BindDropDown();
                
            }
           return "Please choose a file!!";
            BindDropDown();
           
        }