public ActionResult OLD_Clients_getItems()
        {           
            var parameters = AjaxModel.GetParameters(HttpContext);
            var mng = new CRMManager();
            //var items = mng.GetClients().AsQueryable();
            var items = mng.GetSQLClients("GetCRMClients").AsQueryable();

            if (parameters.filter != null && parameters.filter.Count > 0)
            {
                var text = parameters.filter.ContainsKey("text") ? parameters.filter["text"].ToString() : "";
               
                var sourceID = parameters.filter.ContainsKey("sourceName") ? RDL.Convert.StrToInt(parameters.filter["sourceName"].ToString(), 0) : 0;
                items = items.Where(x =>
                    (sourceID == 0 || x.sourceID == sourceID)
                );
                
                List<int?> statusIDs = new List<int?>();
                if (parameters.filter.ContainsKey("statusName"))
                {
                    statusIDs = (parameters.filter["statusName"] as ArrayList).ToArray().Select(x => (int?)RDL.Convert.StrToInt(x.ToString(), 0)).ToList();
                }
                items = items.Where(x =>
                    (statusIDs.Count == 0 || statusIDs.Contains(x.statusID))
                );


                var needActive = parameters.filter.ContainsKey("needActive") ? RDL.Convert.StrToInt(parameters.filter["needActive"].ToString(), -1) : -1;
                items = items.Where(x =>
                    //фильтр в этом месте не срабатывает для needActive=NULL
                    (needActive == -1 || x.needActive == (needActive==1 ? true : false))
                );

                DateTime nextContactMin = DateTime.MinValue, nextContactMax = DateTime.MaxValue;
                if (parameters.filter.ContainsKey("nextContact") && parameters.filter["nextContact"] != null)
                {
                    var dates = parameters.filter["nextContact"].ToString().Split(new char[] { '-' }, StringSplitOptions.RemoveEmptyEntries);
                    if (dates.Length > 0)
                    {
                        nextContactMin = RDL.Convert.StrToDateTime(dates[0].Trim(), DateTime.MinValue);
                    }
                    if (dates.Length > 1)
                    {
                        nextContactMax = RDL.Convert.StrToDateTime(dates[1].Trim(), DateTime.MaxValue).AddDays(1);
                    }
                    items = items.Where(x =>
                        (nextContactMin <= x.nextContact && x.nextContact <= nextContactMax));
                }
               
                if (text != "")
                {
                    items = items.ToList().Where(x =>
                        x.fio != null && x.fio.IndexOf(text, StringComparison.CurrentCultureIgnoreCase) >= 0 ||
                        x.city != null && x.city.IndexOf(text, StringComparison.CurrentCultureIgnoreCase) >= 0 ||
                        x.note != null && x.note.IndexOf(text, StringComparison.CurrentCultureIgnoreCase) >= 0 ||
                        x.username != null && x.username.IndexOf(text, StringComparison.CurrentCultureIgnoreCase) >= 0 ||
                        x.addedBy != null && x.addedBy.IndexOf(text, StringComparison.CurrentCultureIgnoreCase) >= 0 
                        ).AsQueryable();
                }
            }
            
            var sorts = parameters.sort.Split(",".ToArray(), StringSplitOptions.RemoveEmptyEntries);
            var directions = parameters.direction.Split(",".ToArray(), StringSplitOptions.RemoveEmptyEntries);
            var sort1 = sorts.Length > 0 ? sorts[0] : "";
            var direction1 = directions.Length > 0 ? directions[0] : "";

            var sort2 = sorts.Length > 1 ? sorts[1] : "";
            var direction2 = directions.Length > 1 ? directions[1] : "";

            IOrderedQueryable<crm_clients> orderedItems = items.OrderByDescending(p=>p.created);

            switch (sort1)
            {
                case "fio":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.fio);
                    else orderedItems = items.OrderByDescending(x => x.fio);
                    break;
                case "city":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.city);
                    else orderedItems = items.OrderByDescending(x => x.city);
                    break;
                case "note":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.note);
                    else orderedItems = items.OrderByDescending(x => x.note);
                    break;
                case "addedBy":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.addedBy);
                    else orderedItems = items.OrderByDescending(x => x.addedBy);
                    break;
                case "statusName":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.crm_clientStatuses.name);
                    else orderedItems = items.OrderByDescending(x => x.crm_clientStatuses.name);
                    break;
                case "sourceName":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.crm_sources.name);
                    else orderedItems = items.OrderByDescending(x => x.crm_sources.name);
                    break;
                case "subchannel":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.subchannel);
                    else orderedItems = items.OrderByDescending(x => x.subchannel);
                    break;
                case "username":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.username);
                    else orderedItems = items.OrderByDescending(x => x.username);
                    break;
                case "needActive":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.needActive);
                    else orderedItems = items.OrderByDescending(x => x.needActive);
                    break;
                case "nextContact":
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.nextContact);
                    else orderedItems = items.OrderByDescending(x => x.nextContact);
                    break;

                default:
                    if (direction1 == "up") orderedItems = items.OrderBy(x => x.created);
                    else orderedItems = items.OrderByDescending(x => x.created);
                    break;
            }

            if (sort2 != "")
            {
                switch (sort2)
                {
                    case "fio":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.fio);
                        else orderedItems = orderedItems.ThenByDescending(x => x.fio);
                        break;
                    case "city":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.city);
                        else orderedItems = orderedItems.ThenByDescending(x => x.city);
                        break;
                    case "note":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.note);
                        else orderedItems = orderedItems.ThenByDescending(x => x.note);
                        break;
                    case "addedBy":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.addedBy);
                        else orderedItems = orderedItems.ThenByDescending(x => x.addedBy);
                        break;
                    case "statusName":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.crm_clientStatuses.name);
                        else orderedItems = orderedItems.ThenByDescending(x => x.crm_clientStatuses.name);
                        break;
                    case "sourceName":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.crm_sources.name);
                        else orderedItems = orderedItems.ThenByDescending(x => x.crm_sources.name);
                        break;
                    case "subchannel":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.subchannel);
                        else orderedItems = orderedItems.ThenByDescending(x => x.subchannel);
                        break;
                    case "username":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.username);
                        else orderedItems = orderedItems.ThenByDescending(x => x.username);
                        break;
                    case "needActive":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.needActive);
                        else orderedItems = orderedItems.ThenByDescending(x => x.needActive);
                        break;
                    case "nextContact":
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.nextContact);
                        else orderedItems = orderedItems.ThenByDescending(x => x.nextContact);
                        break;

                    default:
                        if (direction2 == "up") orderedItems = orderedItems.ThenBy(x => x.created);
                        else orderedItems = orderedItems.ThenByDescending(x => x.created);
                        break;
                }
            }

            var total = orderedItems.Count();
            var res2 = orderedItems.Skip(parameters.pageSize * (parameters.page - 1)).Take(parameters.pageSize).ToList();


            return Json(new
            {
                items = res2.Select(x => new
                {
                    x.id,
                    fio = x.fio ?? "",
                    city = x.city ?? "",
                    note = x.note ?? "",
                    x.sourceID,
                    sourceName = x.crm_sources != null ? x.crm_sources.name : "",
                    x.statusID,
                    statusName = x.crm_clientStatuses != null ? x.crm_clientStatuses.name : "",
                    addedBy = x.addedBy ?? "",

                    created =  x.created.GetValueOrDefault().ToString("dd.MM.yyyy"),
                    nextContact = x.nextContact != null ? x.nextContact.GetValueOrDefault().ToString("dd.MM.yyyy") : "",
                    subchannel = x.subchannel ?? "",
                    username = x.username ?? "",
                    needActive=x.needActive.HasValue && x.needActive==true ? "Да" : "Нет"
                }),
                total = total
            }, JsonRequestBehavior.AllowGet);
        }