c# - 表单流枚举提示错误

Question

当我使用 FormFlow 时，我有一个字段:

public enum Categories
{
    [Describe("Inquiry / Help")]
    InquiryHelp = 1,
    [Describe("Audio / Video & TV")]
    AVandTV,
    [Describe("Consulting & Data Analysis")]
    Consulting,
    [Describe("Email / Calendar & Collaboration")]
    Email,
    [Describe("IDs / Accounts & Access")]
    Accounts,
    [Describe("Network Services")]
    Network,
    [Describe("Phone Services")]
    Phone,
    [Describe("Radio & Microwave Services")]
    Radio,
    [Describe("Security & Policies")]
    Security,
    [Describe("Servers & Data Storage")]
    Servers,
    [Describe("Software & Business Applications")]
    Software,
    [Describe("Tech Support & Training")]
    TechSupport,
    [Describe("Websites / Design & Hosting")]
    Websites
}

[Optional]
[Describe("the appropriate category")]
[Prompt(new string[] { "Please select the appropriate category for your problem (optional)." })]
public Categories Category { get; set; }

当表单运行时，它看起来像下面这样:

如果我们删除 Prompt 属性，它将显示所有类别:

为什么 Prompt 属性不能与枚举一起使用？

Answer 1

您的提示缺少 {||} pattern element .应该是:

[Prompt("Please select the appropriate category for your problem (optional). {||}")]