botframework - Formflow 机器人与枚举答案位置与答案文本混淆

Question

我有一个表单流对话框，其中将以下问题定义为枚举

public enum PreviousOwnerOptions
{
    [Describe("Owned from new")]
    [Terms("0", "new", ".*[O|o]wned from new")]
    OwnedFromNew = 0,

    [Terms("1", "One")]
    One,

    [Terms("2", "Two")]
    Two,

    [Terms("3", "Three")]
    Three,

    [Terms("4", "Four")]
    Four,

    [Terms("5", "Five")]
    Five,

    [Terms("6", "Six")]
    Six,

    [Describe("More than six")]
    [Terms(".*More than six", "more")]
    MoreThanSix
}

这是问题对用户的显示方式......



我的问题是，如果你输入数字“3”作为答案，那么响应是这样的......



看起来机器人不确定我是指位置 3 的答案，还是答案“三”。我以为 Terms属性会负责澄清吗？

请问我该如何解决？

Answer 1

这是由于两件事的结合而发生的。

首先，您尝试在看似不可为空的字段上使用 0 Enum 值。在这种情况下，0 值保留为空值。来自 formflow docs page :

Any of the data types may be nullable, which you can use to model that the field does not have a value. If a form field is based on an enumeration property that is not nullable, the value 0 in the enumeration represents null (i.e., indicates that the field does not have a value), and you should start your enumeration values at 1. FormFlow ignores all other property types and methods.

第二部分是因为您在条款属性中使用了 1,2,3 等数值，例如 [Terms("1", "One")]默认情况下，formflow 会尝试将这些值与正确的枚举对齐。所以我认为正在发生的是，它让您选择示例中使用的“3”，因为 3 是您的术语之一 [Terms("3", "Three")]它为您提供了这些选择。但在零索引枚举值中，由于0被保留，实际枚举值 [Terms("2", "Two")] Two,是 3。所以它不知道你的意思。

因此，为了使用这些术语使其正常工作，将是这样的:

    public enum PreviousOwnerOptions
    {
        [Terms("1", "One")]
        One=1,

        [Terms("2", "Two")]
        Two,

        [Terms("3", "Three")]
        Three,

        [Terms("4", "Four")]
        Four,

        [Terms("5", "Five")]
        Five,

        [Terms("6", "Six")]
        Six,

        [Describe("More than six")]
        [Terms(".*More than six", "more")]
        MoreThanSix,

        [Describe("Owned from new")]
        [Terms("new", ".*[O|o]wned from new")]
        OwnedFromNew
    }