Question

您好我需要2个选择列表和1个搜索字段，以便在索引视图中过滤数据。

我有来自MVC4的这个代码，有1个下拉列表和1个搜索功能，但我不能让它再用一个下拉列表。

你能帮助我朝正确的方向发展吗？

public ActionResult SearchIndex(string ChainSupplier, string searchString, string city)
{

    var SupplierLst = new List<string>();

    var SupplierQry = from d in db.DAT_SupplyChains
                   orderby d.Supplier
                   select d.Supplier;
    SupplierLst.AddRange(SupplierQry.Distinct());
    ViewBag.ChainSupplier = new SelectList(SupplierLst);

    var cityLst = new List<string>();

    var cityQry = from d in db.SUP_Cities
                      orderby d.Name
                      select d.Name;
    cityLst.AddRange(cityQry.Distinct());
    ViewBag.city = new SelectList(cityLst);

    var Supplys = from m in db.DAT_SupplyChains
                 select m;



    if (!String.IsNullOrEmpty(searchString))
    {
        Supplys = Supplys.Where(s => s.CompanyName.Contains(searchString));
    }

    if (!String.IsNullOrEmpty(ChainSupplier))
    {
        Supplys = Supplys.Where(x => x.Supplier == ChainSupplier);


        return View(Supplys);
    }
    else
    {
        return View(Supplys.Where(x => x.SUP_City.Name == city));
    }

问候和交换

贝

Answer 1

           if (!String.IsNullOrEmpty(searchString))
        {
            Supplys = Supplys.Where(s => s.CompanyName.Contains(searchString));
        }

        if (!String.IsNullOrEmpty(ChainSupplier))
        {
            Supplys = Supplys.Where(x => x.Supplier == ChainSupplier);

        }

        if (!String.IsNullOrEmpty(city))

        {
            return View(Supplys.Where(x => x.SUP_City.Name == city));
        }

        return View(Supplys);

    }

2下拉菜单和1个搜索过滤器

1 个答案: