there must be a way

I am using inference to loop through an item source. This item source could contain serveral different object types. These objects have different attributes, but one of them remains consistent, and that is "desc". desc is a string that represents the description of the object.

My question is, how can I access the attribute "desc" when using inference? So, If I knew the object was of type "dog", I could say dog.desc, and It would return "collie". But, since the object is generic, I can't access this attribute. Please see the code below and you will see what I am talking about.

foreach (var item in dg.ItemsSource)
{             
    dg.SelectedItem = item;
    //item has the property item.desc, but I cannot directly type item.desc 
    //This is because it does not yet know what item it is dealing with in the loop.
    
    //I would like to do this:
    //string s = item.desc;
}
 
Thanks in advance.  
 
Ryan

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Can you have the classes use an interface?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
 
namespace TEST
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
 
 
           
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
 
            SomeClass a = new SomeClass();
            AnotherClass b = new AnotherClass();
 
            List<IDescInterface> diffObjs = new List<IDescInterface>();
 
            diffObjs.Add(a);
            diffObjs.Add(b);
 
            foreach (IDescInterface idi in diffObjs)
            {
                string s = idi.GetDesc();
                MessageBox.Show(s);
            }
 
        }
    }
 
    public interface IDescInterface
    {
        string GetDesc();
    }
 
    public class SomeClass : IDescInterface
    {
        private int a = 0;
        private string desc = "fred";
 
        public string GetDesc()
        {
            return desc;
        }
    }
 
    public class AnotherClass : IDescInterface
    {
        private int b = 0;
        private string desc = "dino";
 
        public string GetDesc()
        {
            return desc;
        }
    }
 
}

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there must be a way

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