Question

You create a class that will represent a row with 2 columns:

public class Foo
{
    // obviously you find meaningful names of the 2 properties

    public string Column1 { get; set; } 
    public string Column2 { get; set; }
}

and then you store in a List<Foo>:

List<Foo> _items = new List<Foo>();
_items.Add(new Foo { Column1 = "bar", Column2 = "baz" });

How can I set the DataSource of a Listbox to items? If I do

ListBox1.DataSource = _items; 

I’ll see a list of Objects in the Listbox instead of the text that it contains

Answer 1

To access the public members, you would just iterate through the items:

foreach(Foo item in _items)
{
     // use item
}

Since your collection is a List<T>, you can also access the items by index:

string col1 = _items[0].Column1;  // First item in list's column1

However, you cannot access the Foo classes private members. The entire point of making a member in Foo private is to prevent access from outside of the Foo class.