Blazor dynamic form has field name issue

Consider the following code which is just a demo to show the problem I'm facing:

@page "/login"@using System.ComponentModel.DataAnnotations<EditForm Model="MyModel" FormName="LoginForm" OnValidSubmit="LoginUser"><DataAnnotationsValidator /><div><InputText type="text" @bind-Value="MyModel.Username" /><ValidationMessage For="() => MyModel.Username" /></div><div><InputText type="password" @bind-Value="MyModel.Password" /><ValidationMessage For="() => MyModel.Password" /></div><button type="submit">        Login</button></EditForm>@code {    [SupplyParameterFromForm]    public required LoginModel MyModel { get; set; }    protected override void OnInitialized() => MyModel ??= new();    void LoginUser() { }    public class LoginModel    {        [Required]        public string? Username { get; set; }        [Required]        public string? Password { get; set; }    }}

When I submit the form the form field names start with MyModel:

Now I want to do the same with reflection so I can create a form builder component (for static SSR). Using the same demo code, consider this:

@page "/login2"@using System.ComponentModel.DataAnnotations@using System.Linq.Expressions@using System.Reflection<EditForm Model="MyModel" FormName="LoginForm" OnValidSubmit="LoginUser"><DataAnnotationsValidator />    @foreach (var prop in typeof(LoginModel).GetProperties())    {        var inputType = prop.Name == "Username" ? "text" : "password";<div><InputText type="@inputType"                       Value="@(GetPropertyValue<string>(prop))"                       ValueChanged="val => SetPropertyValue(prop, val)"                       ValueExpression="GetPropertyExpression<string>(prop)" /><ValidationMessage For="GetPropertyExpression<string>(prop)" /></div>    }<button type="submit">        Login</button></EditForm>@code {    [SupplyParameterFromForm]    public required LoginModel MyModel { get; set; }    protected override void OnInitialized() => MyModel ??= new();    void LoginUser() { }    public class LoginModel    {        [Required]        public string? Username { get; set; }        [Required]        public string? Password { get; set; }    }    T? GetPropertyValue<T>(PropertyInfo prop) => (T?)prop.GetValue(MyModel, null);    void SetPropertyValue(PropertyInfo prop, object? value) => prop.SetValue(MyModel, value);    Expression<Func<T>> GetPropertyExpression<T>(PropertyInfo prop)    {        var model = Expression.Constant(MyModel);        var selector = Expression.Property(model, prop.Name);        return Expression.Lambda<Func<T>>(selector, []);    }}

Now the form field names do not start with the MyModel and the framework populates the ValidationMessage with the default error of Required.

How can I fix this naming issue?