Click event of a in-code added LinkButton control doesn't fire.

public partial class RapportRowControl : System.Web.UI.UserControl
{
    // Gets fired from the Page_Load of the owning WebPage. 
    public void LoadByRapportRow(tblRapportRow row) 
    {
        PlaceHolder1.Controls.Clear();

        HanDataContext dc = new HanDataContext();

        var list = from a in dc.tblCategories
                   where a.lng_prf_ID == row.tblRapport.lng_prf_ID
                   select a;

        Table t = new Table();

        foreach (var item in list)
        {
            LinkButton CategorieLink = new LinkButton();
            CategorieLink.EnableViewState = true;
            CategorieLink.ID = item.lng_ctg_ID.ToString();
            CategorieLink.CommandName = item.lng_ctg_ID.ToString();
            CategorieLink.Text = item.str_ctg_Naam;
            CategorieLink.Click += new EventHandler(CategorieLink_Click);

            TableRow tr = new TableRow();
            TableCell td = new TableCell();

            td.Controls.Add(CategorieLink);
            tr.Cells.Add(td);
            t.Rows.Add(tr);
        }

        PlaceHolder1.Controls.Add(t);
    }

    // ===== DOESN'T FIRE AT ALL =====
    private void CategorieLink_Click(object sender, EventArgs e)
    {
        ActiveRow.lng_ctg_ID = Convert.ToInt32(((LinkButton)sender).CommandName);
    }
    // ===== DOESN'T FIRE AT ALL =====
}