Rock.Apps.CheckScannerUtility.LoginPage.btnLogin_Click C# (CSharp) Метод

        private void btnLogin_Click( object sender, RoutedEventArgs e )
        {
            lblLoginWarning.Visibility = Visibility.Hidden;
            txtUsername.Text = txtUsername.Text.Trim();
            txtRockUrl.Text = txtRockUrl.Text.Trim();
            Uri rockUrl = new Uri( txtRockUrl.Text );
            var validSchemes = new string[] { Uri.UriSchemeHttp, Uri.UriSchemeHttps };
            if ( !validSchemes.Contains( rockUrl.Scheme ) )
            {
                txtRockUrl.Text = "http://" + rockUrl.AbsoluteUri;
            }

            RockRestClient rockRestClient = new RockRestClient( txtRockUrl.Text );

            string userName = txtUsername.Text;
            string password = txtPassword.Password;

            if ( string.IsNullOrWhiteSpace( userName ) )
            {
                lblLoginWarning.Content = "Username cannot be blank";
                lblLoginWarning.Visibility = Visibility.Visible;
                return;
            }

            // start a background thread to Login since this could take a little while and we want a Wait cursor
            BackgroundWorker bw = new BackgroundWorker();
            bw.DoWork += delegate( object s, DoWorkEventArgs ee )
            {
                ee.Result = null;
                rockRestClient.Login( userName, password );
            };

            // when the Background Worker is done with the Login, run this
            bw.RunWorkerCompleted += delegate( object s, RunWorkerCompletedEventArgs ee )
            {
                this.Cursor = null;
                btnLogin.IsEnabled = true;
                try
                {
                    if ( ee.Error != null )
                    {
                        throw ee.Error;
                    }

                    Person person = rockRestClient.GetData<Person>( string.Format( "api/People/GetByUserName/{0}", userName ) );
                    RockConfig rockConfig = RockConfig.Load();
                    rockConfig.RockBaseUrl = txtRockUrl.Text;
                    rockConfig.Username = txtUsername.Text;
                    rockConfig.Password = txtPassword.Password;
                    rockConfig.Save();

                    BatchPage batchPage = new BatchPage( person );

                    if ( this.NavigationService.CanGoBack )
                    {
                        // if we got here from some other Page, go back
                        this.NavigationService.GoBack();
                    }
                    else
                    {
                        try
                        {
                            batchPage.LoadLookups();
                            batchPage.LoadFinancialBatchesGrid();
                        }
                        catch ( HttpErrorException ex )
                        {
                            if ( ex.Response != null && ex.Response.StatusCode.Equals( HttpStatusCode.Unauthorized ) )
                            {
                                lblLoginWarning.Content = "Not Authorized for Financial Batches";
                                lblLoginWarning.Visibility = Visibility.Visible;
                                return;
                            }
                            else
                            {
                                throw ex;
                            }
                        }

                        this.NavigationService.Navigate( batchPage );
                    }
                }
                catch ( WebException wex )
                {
                    // show WebException on the form, but any others should end up in the ExceptionDialog
                    HttpWebResponse response = wex.Response as HttpWebResponse;
                    if ( response != null )
                    {
                        if ( response.StatusCode.Equals( HttpStatusCode.Unauthorized ) )
                        {
                            lblLoginWarning.Content = "Invalid Login";
                            lblLoginWarning.Visibility = Visibility.Visible;
                            return;
                        }
                    }

                    string message = wex.Message;
                    if ( wex.InnerException != null )
                    {
                        message += "\n" + wex.InnerException.Message;
                    }

                    lblRockUrl.Visibility = Visibility.Visible;
                    txtRockUrl.Visibility = Visibility.Visible;
                    lblLoginWarning.Content = message;
                    lblLoginWarning.Visibility = Visibility.Visible;
                    return;
                }
            };

            // set the cursor to Wait, disable the login button, and start the login background process
            this.Cursor = Cursors.Wait;
            btnLogin.IsEnabled = false;
            bw.RunWorkerAsync();
        }