C#IEnumerable不允许访问子项

Question

使长话短说.我有以下代码:

class MyList : IEnumerable
{
    private List<string> T1 = new List<string>();
    private List<string> T2 = new List<string>();
    private List<string> T3 = new List<string>();
    public List<string> Name { set { T1 = value; } get { return T1; } }
    public List<string> DataType { set { T2 = value; } get { return T2; } }
    public List<string> Nullable { set { T3 = value; } get { return T3; } }
    IEnumerator IEnumerable.GetEnumerator()
    {
        return (IEnumerator)GetEnumerator();
    }
    public MyList<List<string>, List<string>, List<string>> GetEnumerator()
    {
        return new MyList<List<string>, List<string>, List<string>>(T1, T2, T2);
    }
}

我想要的是像这样访问它:

       MyList ml = new MyList();
       foreach (var item in ml)
       {
           str = item.Name;
       }

它不允许我访问子项,如item.Name或item.DataType.

Answer 1

看来你正在尝试列出一些东西,每个东西都有3个属性:Name,DataType,Nullable.试试这个:

class MyItem 
{
    public string Name { get; set; }
    public string DataType { get; set; }
    public string Nullable { get; set; }  // also, consider making this bool
}

然后列出那些.