将类设置为IEnumerable并获取类型

Question

Been searching and trying different things but just can't seem to get it working right.
So, here are the basics...

namespace Model
{
  [Serializable]
  public class SomeMDL : IEnumerable<string>
  {
      public int ID { get; set; }
      public int Volumne { get; set; }
      public int Size { get; set; }
  }

    public IEnumerator<string> GetEnumerator()
    {
        yield return ID.ToString();
        yield return Volume.ToString();
        yield return Size.ToString();
    }

    System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
    {
        return this.GetEnumerator();
    }
}

Then call the class:

        Model.SomeMDL mdl = new Model.SomeMDL();
        mdl.ID = 1;
        mdl.Volume = 2;
        mdl.Size = 2;

        string myVar;            
        foreach (string item in mdl)
        {                
            //myVar = item.GetType().ToString();
            //myVar = item.GetEnumerator().GetType().Name.ToString();
            //myVar = item.GetEnumerator().GetType().FullName.ToString();
            //myVar = item.GetEnumerator().GetType().DeclaringType.FullName.ToString(); //null ref
            myVar= item.ToString(); //gets the value             
        }

What I am looking for is a way not only to bring back the values, which is item.ToString() but I need to know which public int it is reading. Is it ID, Volume, or Size?
Need to bring back a string of the type (ID, Volume, or Size).

Thanks

Answer 1

Unless I'm missed something about your code here, it seems like you're misusing/misunderstanding the basic concept of the IEnumerable interface. IEnumerable is used to represent a group of objects of the same type, which can then be iterated through. All you're doing is just yielding each of the properties within your class - what is the point? If you need any one of the properties, why not just access it normally? What do you imagine you'll gain by allowing yourself and others to blindly iterate through your three properties?