public Boolean InsertInstallers()
    {
        try
        {
            Whitfield_Project _wc = new Whitfield_Project();
            _wc.DeleteInstallers(Convert.ToInt32(ViewState["twc_project_number"].ToString()));
            //ArrayList chkArray = GetSelectedItems(ChkProjContacts
            for (int i = 0; i < chkInstallers.Items.Count; i++)
            {

                if (chkInstallers.Items[i].Selected)
                    _wc.PopulateProject_Installers(Convert.ToInt32(ViewState["twc_project_number"].ToString()), Convert.ToInt32(chkInstallers.Items[i].Value));
            }
            return true;
        }
        catch (Exception ex)
        {
            HttpResponse objResponse = HttpContext.Current.Response;
            objResponse.Write(ex.Message);
            return false;
        }
    }