Event handler does not get called

Question

In the following code, the asp does not enter the action listener (Button1_Click). Can anyone help?

protected void Project_Click(object sender, EventArgs e)
    {
        Courses.ActiveViewIndex = 0;

        String ConnStr = ConfigurationManager.ConnectionStrings["MyRuMoR"].ToString();
        SqlConnection conn = new SqlConnection(ConnStr);
        conn.Open();
        SqlCommand cmd = new SqlCommand("ViewProjects", conn);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.Add("@course_code", "PHYS305");

        SqlDataReader rdr = cmd.ExecuteReader();

        int c = 1;

        while (rdr.Read())
        {
            String name = rdr.GetString(rdr.GetOrdinal("name"));
            int p_id = rdr.GetInt32(rdr.GetOrdinal("p_id"));

            LinkButton lb = new LinkButton();
            lb.ID = p_id.ToString();

            lb.Text = "Project " + c + " is: " + name;
            form1.Controls.Add(lb);

            lb.Click += new EventHandler(this.Button1_Click);

            c++;
        }
        conn.Close();
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Write("Hello");
    }

Answer 1

You need to read up on the ASP.NET page lifecycle.

When it comes to dynamic controls, you need to recreate them on postback, or they will not exist and the attached event handler will not fire.

Dynamic contorls are best created on the PreInit event of the page.

As described here:

protected virtual void OnPreInit(EventArgs e)
{
   base.OnPreInit(e);
   //your code
}

Answer 2

Yes not just understanding dynamic controls you need to TRULEY understnad them This is one of the best article on them by a ASP.NET team memeber.

TRULY UNDERSTANDING DYNAMIC CONTROLS

Answer 3

You have to put all or the part of your code that creates dynamic controls inside the Pre_Init event of page life cycle, something like this

protected void Page_PreInit(object sender, EventArgs e)
{
   LinkButton lb = new LinkButton();
   lb.ID = p_id.ToString();

   lb.Text = "Project " + c + " is: " + name;
   form1.Controls.Add(lb);

   lb.Click += new EventHandler(this.Button1_Click);
}

Then only it will achieve what you want.