private void Page_Load(object sender, System.EventArgs e)
        {
            try
            {
                OrgId = _functions.GetUserOrgId(HttpContext.Current.User.Identity.Name, false);

                if(!IsPostBack)
                {
                    pmitems = new clsPMSchedService();
                    pmitems.iOrgId = OrgId;
                    dgPMItems.DataSource = pmitems.GetPMServicesList();
                    dgPMItems.DataBind();
                    dtCats = pmitems.GetRepairCatsList();
                    ddlCategory.DataSource = dtCats;
                    ddlCategory.DataBind();
                    ViewState["Categories"] = dtCats;
                }
            }
            catch(Exception ex)
            {
                _functions.Log(ex, HttpContext.Current.User.Identity.Name, SourcePageName);
                Session["lastpage"] = ParentPageURL;
                Session["error"] = ex.Message;
                Session["error_report"] = ex.ToString();
                Response.Redirect("error.aspx", false);
            }
            finally
            {
                if(pmitems != null)
                    pmitems.Dispose();
            }
        }