C#

namespace CSharpListObjects
{
    public partial class Form1: System.Web.UI.Page
    {
        List<Employee> employees = new List<Employee>();

        protected void Page_Load(object sender, EventArgs e)
        {            
        }

        protected void btnShowEmployees_Click(object sender, EventArgs e)
        {
            StringBuilder employeeDetails = new StringBuilder();

            foreach(Employee e in employees)
            {
                employeeDetails.Append("< br/>Name: " + e.Name                
                + " Department: " + e.Department 
                + " Salary: " +  e.Salary + "< br/ >");
            }

            Literal1.Text = employeeDetails.ToString();
        }

       protected void btnAddEmployee_Click(object sender, EventArgs e)
       {

         Employee employee = new Employee();

         employee.Name = txtName.Text;

         employee.Department = txtDepartment.Text;

         employee.Salary = Convert.ToInt32(txtSalary.Text);

         employees.Add(employee);
       }
    }
}