A datatable with columns at run time

01	public class Customer

02

{

03	private string _firstName;

04	private string _lastName;

05	private string _email;

06

07	public string FirstName

08

{

09	get { return _firstName; }

10	set { _firstName = value; }

11

}

12

13	public string LastName

14

{

15	get { return _lastName; }

16	set { _lastName = value; }

17

}

18

19	public string FullName

20

{

21	get { return _firstName + " " + _lastName; }

22

}

23

24	public string Email

25

{

26	get { return _email; }

27	set { _email = value; }

28

}

29

}

------------------------------------------------
 //DataGrid1.DataSource=GetCustomers();
// DataGrid1.DataBind();
DataTable dt=new DataTable();
dt=GetCustomers();
-------------------------------------------------

09	private List<Customer> GetCustomers()

10

{

11	List<Customer> customers = new List<Customer>();

12

13	for (int i = 1; i <= 20; i++)

14

{

15	Customer customer = new Customer();

16	customer.FirstName = "FirstName" + i;

17	customer.LastName = "LastName" + i;

18	customer.Email = "Email" + i;

19	customers.Add(customer);

20

}

21

22	return customers;

23

}