Herald.UpdateInfo.Update_Click C# (CSharp) Метод

        private async void Update_Click(object sender, RoutedEventArgs e)
        {
            Waiting.IsActive = true;
            int result = await app.User.Update(cardnum.Text, password.Password, 
                string.IsNullOrEmpty(number.Text) ? null : number.Text, 
                string.IsNullOrEmpty(pe_password.Password) ? null : pe_password.Password,
                string.IsNullOrEmpty(lib_username.Text) ? null : lib_username.Text,
                string.IsNullOrEmpty(lib_password.Password) ? null : lib_password.Password,
                string.IsNullOrEmpty(card_query_password.Password) ? null : card_query_password.Password);
            Waiting.IsActive = false;
            if (result==1)
            {
                ContentDialog dialog = new ContentDialog()
                {
                    Title = "信息更新成功^_^", //标题
                    Content = "快去看看能不能正常使用了~",//内容
                    FullSizeDesired = false,  //是否全屏展示
                    PrimaryButtonText = "OK",
                };
                dialog.PrimaryButtonClick += dialog_PrimaryButtonClick;
                dialog.ShowAsync();
            }
        }
    }