ERP.LoginUI.RegistrationForm.RegistrationOperation_Completed C# (CSharp) Метод

        private void RegistrationOperation_Completed(InvokeOperation<CreateUserStatus> operation)
        {
            if (!operation.IsCanceled)
            {
                if (operation.HasError)
                {
                    ErrorWindow.CreateNew(operation.Error);
                    operation.MarkErrorAsHandled();
                }
                else if (operation.Value == CreateUserStatus.Success)
                {
                    this.registrationData.CurrentOperation = WebContext.Current.Authentication.Login(this.registrationData.ToLoginParameters(), this.LoginOperation_Completed, null);
                    this.parentWindow.AddPendingOperation(this.registrationData.CurrentOperation);
                }
                else if (operation.Value == CreateUserStatus.DuplicateUserName)
                {
                    this.registrationData.ValidationErrors.Add(new ValidationResult(ErrorResources.CreateUserStatusDuplicateUserName, new string[] { "UserName" }));
                }
                else if (operation.Value == CreateUserStatus.DuplicateEmail)
                {
                    this.registrationData.ValidationErrors.Add(new ValidationResult(ErrorResources.CreateUserStatusDuplicateEmail, new string[] { "Email" }));
                }
                else
                {
                    ErrorWindow.CreateNew(ErrorResources.ErrorWindowGenericError);
                }
            }
        }