private void BindInvoice()
        {
            if ((_invoice != null))
            {
                var serviceInvoiceSvc = new ServiceInvoiceService(MyConfiguration,
                                                                  null,
                                                                  MyOAuthKeyService);
                ServiceInvoice serviceInvoice = serviceInvoiceSvc.Get(MyCompanyFile, _invoice.UID, MyCredentials);

                //Set the default value
                var customers =
                    CmboCustomer.DataSource as PagedCollection <Customer>;

                if (customers != null)
                {
                    for (int i = 0; i <= customers.Count; i++)
                    {
                        Customer customer = customers.Items[i];
                        if (customer.UID == serviceInvoice.Customer.UID)
                        {
                            CmboCustomer.SelectedIndex = i;
                            break;
                        }
                    }
                }
                BsServiceInvoice.DataSource = serviceInvoice;
                GrdServiceLines.DataSource  = FlattenLines(serviceInvoice.Lines);
            }
        }
        private void BindInvoice()
        {
            if ((_invoice != null))
            {
                var serviceInvoiceSvc = new ServiceInvoiceService(MyConfiguration,
                                                                  null,
                                                                  MyOAuthKeyService);
                ServiceInvoice serviceInvoice = serviceInvoiceSvc.Get(MyCompanyFile, _invoice.UID, MyCredentials);

                //Set the default value
                var customers =
                    CmboCustomer.DataSource as PagedCollection<Customer>;

                if (customers != null)
                {
                    for (int i = 0; i <= customers.Count; i++)
                    {
                        Customer customer = customers.Items[i];
                        if (customer.UID == serviceInvoice.Customer.UID)
                        {
                            CmboCustomer.SelectedIndex = i;
                            break;
                        }
                    }
                }
                BsServiceInvoice.DataSource = serviceInvoice;
                GrdServiceLines.DataSource = FlattenLines(serviceInvoice.Lines);
            }
        }