如何在EF核心5请求中使用未映射的属性

public class Product
{
    public int Id { get; set; }
    public string Name { get; set; }
    public decimal Price { get; set; }

    [NotMapped] // 使用[NotMapped]特性标记未映射的属性
    public decimal TotalPrice => Price * 1.1m; // 未映射的属性
}

public class ApplicationDbContext : DbContext
{
    public DbSet<Product> Products { get; set; }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Product>().Ignore(p => p.TotalPrice); // 忽略未映射的属性
    }
}

using (var context = new ApplicationDbContext())
{
    var products = context.Products.Select(p => new
    {
        p.Id,
        p.Name,
        p.Price,
        p.TotalPrice // 使用未映射的属性
    }).ToList();

    foreach (var product in products)
    {
        Console.WriteLine($"Id: {product.Id}, Name: {product.Name}, Price: {product.Price}, TotalPrice: {product.TotalPrice}");
    }
}