Question

我正在尝试使用带有Microsoft Bot框架的FormBuilder构建表单。我需要动态添加选项。

我能够添加它（状态）但是当我选择其中一个状态时，流程就会自动结束。

请在下面找到示例代码：

public enum StatesOptions
{

}

public enum BranchOptions
{

}

[Serializable]
public class AppointmentQuery
{
    [Prompt("Please enter {&}")]
    [Required(AllowEmptyStrings = false, ErrorMessage = "Please enter your Name, it is a mandatory field")]
    public string Name;

    [Prompt("Please enter {&}")]
    [Required(AllowEmptyStrings = false, ErrorMessage = "Please enter your Email, it is a mandatory field")]
    [EmailAddressAttribute(ErrorMessage = "Email Id is invalid")]
    public string Email;

    [Prompt("Please enter {&}")]
    [Required(AllowEmptyStrings = false, ErrorMessage = "Please enter appointment date, it is a mandatory field")]
    [EmailAddressAttribute(ErrorMessage = "Appointment date is invalid")]
    public DateTime ApptDate;

    [Prompt("Please enter {&}")]
    public StatesOptions States;

    public string SelectedState;

    [Prompt("Please enter {&}")]
    [Required(AllowEmptyStrings = false, ErrorMessage = "Please enter your Email, it is a mandatory field")]
    [EmailAddressAttribute(ErrorMessage = "Email Id is invalid")]
    public string NewEmail;

    [Prompt("Please enter {&}")]
    public BranchOptions? Branches;

    public string SelectedBranch;

    public static IForm<AppointmentQuery> BuildAppointmentBookingForm()
    {
        OnCompletionAsyncDelegate<AppointmentQuery> bookAppointment = async (context, state) =>
        {


        };
        return new FormBuilder<AppointmentQuery>()
           .Field(nameof(Name))
           .Field(nameof(Email))
           .Field(nameof(ApptDate))              
           //.Field(nameof(States))
           .Field(new FieldReflector<AppointmentQuery>(nameof(States))
                .SetActive((state) => true)
                .SetPrompt(new PromptAttribute("Please select one of the state from the following options: {||}")
                {
                    ChoiceStyle = ChoiceStyleOptions.Buttons
                })
                .SetDefine((state, field) =>
                {
                    var data = new FeedStateData().feedData();
                    var states = data.Select(r => r.StateName);

                    foreach (var item in states)
                    {
                        field
                            .AddDescription(item, item)
                            .AddTerms(item, item);
                        //return true;
                    }
                    return Task.FromResult(true);                        
                })
                .SetNext((value, state) =>
                {
                    var selection = (States)value;
                    state.SelectedState = selection.StateName.ToString();

                    return new NextStep(new[] { nameof(Branches) });

                }))
          .OnCompletion(bookAppointment)
           .Build();
    }

}

另外，我需要向它添加另一个动态字段分支，但是代码没有到达它，即分支，没有异常被抛出但是Form不起作用。

请查找分支字段的示例代码

.Field(new FieldReflector<AppointmentQuery>(nameof(Branches))
                .SetActive((state) => true)
                .SetPrompt(new PromptAttribute("Please select branch from following options: {||}")
                {
                    ChoiceStyle = ChoiceStyleOptions.Buttons
                })
                .SetDefine((state, field) =>
                {
                    var data = new FeedStateData().feedData();
                    var states = data.Select(r => r.StateName);
                    var bracnhList = data.Where(s => s.StateName == state.SelectedState).Select(a => a.Branches).FirstOrDefault().Select(n => n.BranchName).ToList();

                    foreach (var item in bracnhList)
                    {
                        field
                            .AddDescription(item, item)
                            .AddTerms(item);

                    }
                    return Task.FromResult(true);
                })
                .SetNext((value, state) =>
                {
                    var selection = (Branch)value;
                    state.SelectedBranch = selection.ToString();

                    return new NextStep(new[] { nameof(Branches) });

                }))

有人可以帮我这个吗？

Answer 1

我得到了答案，每个字段项都会在每个响应中得到评估。因此，即使没有填充SelectedState的值，也会评估跟随行。

var bracnhList = data.Where(s => s.StateName == state.SelectedState).Select(a => a.Branches).FirstOrDefault().Select(n => n.BranchName).ToList();

要修理它，我已经检查了它。

if(!string.IsNullOrEmpty(state.SelectedState))

请建议是否有更好的方法。

Microsoft Bot框架动态选项问题

1 个答案: