var list = new[]{
new{
FirstField = default(string),
SecondField = default(int),
ThirdField = default(double)
}
}.ToList();
list.RemoveAt(0);

下面是我的尝试。

List<object> list = new List<object> { new { Id = 10, Name = "Testing1" }, new {Id =2, Name ="Testing2" }}; 

当我为自定义类型编写类似的匿名列表时，我想到了这个方法。

您可以在代码中这样做。

var list = new[] { new { Id = 1, Name = "Foo" } }.ToList();
list.Add(new { Id = 2, Name = "Bar" });

在最新版本4.0中，可以像下面这样使用动态

var list = new List<dynamic>();
        list.Add(new {
            Name = "Damith"
    });
        foreach(var item in list){
            Console.WriteLine(item.Name);
        }
    }

试试这个:

var result = new List<object>();

foreach (var test in model.ToList()) {
   result.Add(new {Id = test.IdSoc,Nom = test.Nom});
}

根据这个答案，我提出了两种可以完成任务的方法:

    /// <summary>
    /// Create a list of the given anonymous class. <paramref name="definition"/> isn't called, it is only used
    /// for the needed type inference. This overload is for when you don't have an instance of the anon class
    /// and don't want to make one to make the list.
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="definition"></param>
    /// <returns></returns>
#pragma warning disable RECS0154 // Parameter is never used
    public static List<T> CreateListOfAnonType<T>(Func<T> definition)
#pragma warning restore RECS0154 // Parameter is never used
    {
        return new List<T>();
    }
    /// <summary>
    /// Create a list of the given anonymous class. <paramref name="definition"/> isn't added to the list, it is
    /// only used for the needed type inference. This overload is for when you do have an instance of the anon
    /// class and don't want the compiler to waste time making a temp class to define the type.
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="definition"></param>
    /// <returns></returns>
#pragma warning disable RECS0154 // Parameter is never used
    public static List<T> CreateListOfAnonType<T>(T definition)
#pragma warning restore RECS0154 // Parameter is never used
    {
        return new List<T>();
    }

你可以使用这些方法

var emptyList = CreateListOfAnonType(()=>new { Id = default(int), Name = default(string) });
//or
var existingAnonInstance = new { Id = 59, Name = "Joe" };
var otherEmptyList = CreateListOfAnonType(existingAnonInstance);

这个答案也有类似的想法，但直到我创建了这些方法之后我才发现它。