c# - DataGridView with custom object inside each cell

In C# I have DataGridView and my custom class "Thing" that have override on toString() method.
All I want to do is to populate DataGridView with objects of a Thing type, and so the Thing objects can display them self on the DataGridView.

public class Thing
{
  public string text {get;set;}
  public int id {get;set;}


  public Thing(string text, id)
  {
     this.text = text;
     this.id = id;
  }

  public override string ToString()
  {
     return text;
  }

} 

and I am trying to populate DataGridView for example:

DataTable dt = new DataTable();
int Xnum = 100;
int Ynum = 100;

for (int i = 0; i < Xnum; i++)

  dt.Columns.Add(i.ToString(), typeof(Thing));                        

for (int i = 0; i < Ynum; i++)
  dt.Rows.Add();

and then

in some loop I try to fill values of the created cells in dt:

//loop
(dt.Rows[x][y] as Thing).text = "some text from loop";
(dt.Rows[x][y] as Thing).id = "some id from loop";
//end loop

And at the end:

DataGridView1.DataSource = dt;

Grid correctly populate with cells and rows but they are empty. I want them to have visible text on it from Thing.text fields.

I need to do it with custom object cause I want few things there to be available in future.

So how to do class so DataGridView can use it somehow to get text value to display on each cell?