PagedList - How to fix error The method 'Skip' is only supported for sorted input in LINQ to Entities. The method 'OrderBy' must be called before the method 'Skip'.

The method 'Skip' is only supported for sorted input in LINQ to Entities. The method 'OrderBy' must be called before the method 'Skip'.

- you must order your result - use  OrderBy or OrderByDescending function
- in my case

            var stylemasters = db.StyleMasters.Include(s => s.GroupMaster).Include(s => s.StyleTypeMaster);

            switch (sortBy)
            {
                case "Name desc":
                    stylemasters = stylemasters.OrderByDescending(s => s.StyleName);
                    break;
                case "Name":
                    stylemasters = stylemasters.OrderBy(s => s.StyleName);
                    break;
                case "Description desc":
                    stylemasters = stylemasters.OrderByDescending(s => s.StyleDescription);
                    break;
                case "Description":
                    stylemasters = stylemasters.OrderBy(s => s.StyleDescription);
                    break;
                default:
                    stylemasters = stylemasters.OrderBy(s => s.StyleName);
                    break;
            }