保留搜索参数以进行排序

Question

我设置了一个控制器，该控制器根据从下拉列表传递的值过滤结果，并提供一个搜索字词，然后更新表。该表还通过表头上的链接进行了排序（asc / desc）。我想要做的是让用户搜索特定术语，然后对该数据集进行排序。现在单击标题时，它将在搜索过滤器之前对原始数据集进行排序。如何在请求时保留原始两个参数searchString和field的值并将其添加到sortOrder以便对该数据集进行排序？

DisplayViews（）方法

 public async Task<IActionResult> DisplayViews(String sortOrder, string searchString, string field)
        {
            ViewData["NameSortParm"] = String.IsNullOrEmpty(sortOrder) ? "name_desc" : "";
            ViewData["DefinitionSortParm"] = sortOrder == "Definition" ? "Definition_desc" : "Definition";
            ViewData["OwnerSortParm"] = sortOrder == "Owner" ? "Owner_desc" : "Owner";
            ViewData["CurrentFilter"] = searchString;
            var Tables = _context.Objects.Where(Object => Object.Type == "View");


            switch (sortOrder)
            {
                case "name_desc":
                    Tables = Tables.OrderByDescending(s => s.Name);
                    break;
                case "Definition":
                    Tables = Tables.OrderBy(s => s.Definition);
                    break;
                case "Definition_desc":
                    Tables = Tables.OrderByDescending(s => s.Definition);
                    break;
                case "Owner":
                    Tables = Tables.OrderBy(s => s.Owner);
                    break;
                case "Owner_desc":
                    Tables = Tables.OrderByDescending(s => s.Owner);
                    break;
                default:
                    Tables = Tables.OrderBy(s => s.Name);
                    break;
            }

            if (!String.IsNullOrEmpty(searchString))
            {   
                if((!String.IsNullOrEmpty(field) || !String.IsNullOrWhiteSpace(field)) && field == "Name")
                {
                    Tables = Tables.Where(s => s.Name.Contains(searchString));
                }
                else if((!String.IsNullOrEmpty(field) || !String.IsNullOrWhiteSpace(field)) && field == "Definition")
                {
                    Tables = Tables.Where(s => s.Definition.Contains(searchString));
                }
                else if ((!String.IsNullOrEmpty(field) || !String.IsNullOrWhiteSpace(field)) && field == "Owner")
                {
                    Tables = Tables.Where(s => s.Owner.Contains(searchString));
                }


                //return View(await Tables.AsNoTracking().ToListAsync());

            }


            return View(await Tables.AsNoTracking().ToListAsync());
        }