How to show list values in ASP NET?

We want to display a simple list of data values in an ASP NET web page.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Customer_Details : System.Web.UI.Page
{
public class myCustomer {
public String Name {get;set;}
public int Age { get; set; }
public String City { get; set; }
public myCustomer()
{
}
public myCustomer(string _name, int _age, string _city)
{
Name = _name;
Age = _age;
City = _city;
}
}
List customerList;
protected void Page_Load(object sender, EventArgs e)
{
customerList = new List();
myCustomer co1 = new myCustomer { Name = "Rohit", Age = 25, City = "Kolkata" };
myCustomer co2 = new myCustomer("Manish", 27, "Mumbai");
myCustomer co3 = new myCustomer("Priya", 22, "Goa");
customerList.Add(co1);
customerList.Add(co2);
customerList.Add(co3);
testDataGrid.DataSource = customerList;
testDataGrid.DataBind();
}
}

<%@ Page Language="C#" CodeFile="customer_details.aspx.cs" Inherits="Customer_Details" %>




Name:



Age:
'visible="true" />


City:

Output:
Name: Rohit
Age: 25
City: Kolkata

Name: Manish
Age: 27
City: Mumbai

Name: Priya
Age: 22
City: Goa