c#-Blazor 动态字段和带有验证/验证器的 ASP.Net.Core

我试图编写一个Blazor应用程序（从服务器端开始），通过验证动态创建其表单字段。我喜欢Razor附带的绑定到模型的验证/验证器，但我不知道如何对动态创建的字段（也称为无模型）进行验证。

这就是我所拥有的。我非常感谢您的指导。

Startup.cs

...
public void ConfigureServices(IServiceCollection services)
        {
            services.AddRazorPages();
            services.AddServerSideBlazor();

            services.AddSingleton();
        }
...

ControlTypes.cs

namespace DynamicContent
{
    public enum ControlTypes
    {
        Text                = 1,
        Date                = 2,
        DateTime            = 3,
        Time                = 4, 
        SingleSelect        = 5, // DropdownList
        MultiSelect         = 6,
        Boolean             = 7, // Checkbox or Slide
        Email               = 8,
        RadioButtonList     = 9
    }
}

ControlDetails.cs

namespace DynamicContent
{
    public class ControlDetails
    {
        public string ID { get; set; }
        public string FieldName { get; set; }
        public ControlTypes Type { get; set; } = ControlTypes.Text;
        public string Label { get; set; }
        public bool IsRequired { get; set; }
        public bool IsReadOnly { get; set; } = false;
        public string Tooltip { get; set; } // ToDo: Default to Label (if not set)
        public string Placeholder { get; set; }
        public string Min { get; set; } = string.Empty;
        public string Max { get; set; } = string.Empty;
    }
}

DynamicControlService.cs

using System.Collections.Generic;

namespace DynamicContent
{
    public class DynamicControlService
    {
        public List GetControls()
        {
// Eventually this will pull from a database 
            var result = new List();

            result.Add(new ControlDetails { FieldName = "firstName", Label = "First Name", IsRequired = true });
            result.Add(new ControlDetails { FieldName = "lastName", Label = "Last Name", IsRequired = true });
            result.Add(new ControlDetails { FieldName = "birthDate", Type = ControlTypes.Date, Label = "Birth Date",
                IsRequired = false, Tooltip = "Please enter Birth Date in mm/dd/yyyy format" });

            return result;
        }
    }
}

Counter.razor

@page "/counter"
@inject DynamicControlService _controlService

<form>
    @foreach (var control in ControlList)
    {
        <div class="form-group">

            <!-- Label -->
            <label asp-for=@(control.FieldName) class="label-control">
                @(control.Label) @if (control.IsRequired)
                {<b> *</b>}
            </label>

            <!-- Input field -->
            @switch (control.Type)
            {
                case ControlTypes.Text:
                    <input type="text" id="@control.ID" class="form-control" asp-for=@(control.FieldName)
                            @bind-value="@Values[control.Label]" required="@control.IsRequired" />
                    break;

                case ControlTypes.Email:
                    <input type="email" id="@control.ID" class="form-control" value="@Values[control.Label]"
                            required="@control.IsRequired" />
                    break;

                case ControlTypes.Date:
                    <input type="date" id="@control.ID" class="form-control" value="@Values[control.Label]"
                            required="@control.IsRequired" @onchange="@(a => ValueChanged(a, control.Label))"
                            min="1900-01-01" max="2999-12-31"/>
                    break;
            }