how to insert a task to microsoft project using c#

namespace ProjectAddIn3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            
        }

        private void button1_Click(object sender, EventArgs e)
        {
           // this.Application.NewProject += new Microsoft.Office.Interop.MSProject._EProjectApp2_NewProjectEventHandler(Application_NewProject);

                       
            
        }


        public void Application_NewProject(Microsoft.Office.Interop.MSProject.Project pj)
        {
            MSProject.Task newTask = pj.Tasks.Add("This text was added by using code");
            newTask.Start = DateTime.Now;
            newTask.Duration = "3";
            newTask.ResourceNames = "Rob Caron, Kelly Krout";
        } 

      }