BotFramework设置默认数据在FormFlow中

Question

我正在使用Botbuilder的C＃SDK进行BotFrameWork，并想做以下操作。

我有一个FormFlow对话框，该对话框收集用于保留表的信息。FormFlow中的项目之一是要求姓名。在另一个对话框中，我收集名称并将其保存到UserData。

context.UserData.SetValue<string>("Name", userName);

我的formflow看起来像这样。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Microsoft.Bot.Builder.FormFlow;
using Microsoft.Bot.Builder.FormFlow.Advanced;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace DinnerBot.Dialogs
{   
    [Serializable]
    public class ReservationDialog
    {
        public enum SpecialOccasionOptions
        {
            Birthday,
            Anniversary,
            Engagement,
            none
        }
        [Prompt(new string[] { "What is your name?" })]
        public string Name { get; set; }
        [Prompt(new string[] { "What is your email?" })]
        public string Email { get; set; }
        [Pattern(@"^(+d{1,2}s)?(?d{3})?[s.-]?d{3}[s.-]?d{4}$")]
        public string PhoneNumber { get; set; }
        [Prompt("What date would you like to dine with us? example: today, tomorrow, or any date like 04-06-2017 {||}", AllowDefault = BoolDefault.True)]
        [Describe("Reservation date, example: today, tomorrow, or any date like 04-06-2017")]
        public DateTime ReservationDate { get; set; }
        public DateTime ReservationTime { get; set; }
        [Prompt("How many people will be joining us?")]
        [Numeric(1, 20)]
        public int? NumberOfDinners;
        public SpecialOccasionOptions? SpecialOccasion;
        [Numeric(1, 5)]
        [Optional]
        [Describe("for how you enjoyed your experience with Dinner Bot today (optional)")]
        public double? Rating;
        public static IForm<ReservationDialog> BuildForm()
        {
            return new FormBuilder<ReservationDialog>()
                .Field(nameof(Name))
                .Field(nameof(Email), validate: ValidateContactInformation)
                .Field(nameof(PhoneNumber))
                .Field(nameof(ReservationDate))
                .Field(new FieldReflector<ReservationDialog>(nameof(ReservationDialog.ReservationTime))
                    .SetPrompt(PerLinePromptAttribute("What time would you like to arrive?"))
                    ).AddRemainingFields()
                .Build();
        }
        private static Task<ValidateResult> ValidateContactInformation(ReservationDialog state, object response)
        {
            var result = new ValidateResult();
            string contactInfo = string.Empty;
            if (GetEmailAddress((string)response, out contactInfo))
            {
                result.IsValid = true;
                result.Value = contactInfo;
            }
            else
            {
                result.IsValid = false;
                result.Feedback = "You did not enter valid email address.";
            }
            return Task.FromResult(result);
        }
        private static bool GetEmailAddress(string response, out string contactInfo)
        {
            contactInfo = string.Empty;
            var match = Regex.Match(response, @"[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?");
            if (match.Success)
            {
                contactInfo = match.Value;
                return true;
            }
            return false;
        }
        private static PromptAttribute PerLinePromptAttribute(string pattern)
        {
            return new PromptAttribute(pattern)
            {
                ChoiceStyle = ChoiceStyleOptions.PerLine
            };
        }

    }
}

在我的根对话框中，我称之为这样。

                        context.Call(FormDialog.FromForm<ReservationDialog>(ReservationDialog.BuildForm,
                        FormOptions.PromptInStart), this.ReservationFormComplete);

如果存在，我如何才能跳过名称字段并从用户数据中获取名称？

Answer 1

定义名称属性的fieldreflector.setactive。例如：

.Field(new FieldReflector<ReservationDialog>(nameof(ReservationDialog.Name))
    .SetActive((state) => SetFieldActive(state, nameof(ReservationDialog.Name)))
    ...

然后在您的SetFieldActive委托中检查名称是否已经存在，如果是，则将值设置为state并返回false。然后不会显示提示。如果找不到名称，请返回true以显示提示。

我写了一篇简短的博客文章和您可能感兴趣的有关此主题的示例。

Answer 2

您有一些简单的选项。
1）使您的字段无效，如果您从保存的bot状态设置它们，则默认情况下会跳过。（除非您通过emoptions.promptfieldswithvalues。）2）将您的价值变成实体估算。如果它们以您的表格匹配字段，也将被分配和跳过。