Check the below save button logic in wpf(mvc3) to save textbox data without using backend

Question

    private void SaveButton_Click(object sender, RoutedEventArgs e)

    {

        //testing - change the data before sending

        myVehicle.Color = "Green";

        //create srvm service

        srvm::WebServiceVehicleMasterSoapClient srv = new srvm::WebServiceVehicleMasterSoapClient();

        srv.CreateVehicleCompleted += new EventHandler<CreateVehicleCompletedEventArgs>(srv_CreateVehicleCompleted);

        srv.CreateVehicleAsync(myVehicle);

        //Remember, we are doing things asynchronously.  

        //So first, we wire up the async handler for when the service is called

        srv.SaveVehicleAsync(Vehicle_ID.Text, Vendor_ID.Text, Company_ID.Text, Convert.ToDecimal(Reg_Authority.Text),

            Convert.ToDateTime(Reg_Date.Text), Convert.ToInt32(Chasis_NO.Text), Convert.ToInt32(Engine_NO.Text), Convert.ToDateTime(Make.Text), Convert.ToString(SeriesName.Text),

            Convert.ToString(Category.Text), Convert.ToString(Color.Text), Convert.ToString(GearType.Text), Convert.ToString(CubicCapacity.Text), Convert.ToDateTime(PurchaseDate.Text), Convert.ToDouble(PurchaseCost.Text),

            Convert.ToString(TitleHolder.Text), Convert.ToString(Owner.Text), Convert.ToString(TrackerType.Text), Convert.ToString(Tracker_ID.Text), Convert.ToString(DriveConfiguration.Text));

        // srv.CreateVehicleCompleted += new EventHandler<srvm.CreateVehicleCompletedEventArgs>(srv_CreateVehicleCompleted);

        //After that we can now call the service.  

       

    }