public void LoadListActivity() { //listActivityUI.Size = new Size(300, 0); srcActivity = new List <ActivityDTO>(); ActivityBLL abll = new ActivityBLL(); srcActivity = abll.GetAllActivity(Global.id_Board); srcActivity.Reverse(); listActivityUI.DataSource = srcActivity; try { //----------in list page------------------- this.listSpace.Controls.Add(listActivityUI); } catch { //----------in home page------------------- this.pnWorkSpace.Controls.Add(listActivityUI); } }