Question

我有一个下拉列表和一个文本框，其中的下拉列表中的数据非常多。所以我想在文本框上创建过滤器功能，当我们在文本框中填写单词并按下过滤器按钮后，下拉菜单中出现的只有与文本框相对应的单词。下面是我的代码

控制器

MM/DD/YYYY

查看

public ActionResult GetInsuranceCompany(string code)
{
   string codeJP = string.Empty;
   ParamJenisPembayaran paramJP = db.ParamJenisPembayarans.Where(x => x.Code == code).FirstOrDefault();
   if (paramJP != null) codeJP = paramJP.Name;

   var states = db.InsuranceCompany_CSFs.Where(x => x.JenisPembayaran == codeJP).ToList();
   List<SelectListItem> listates = new List<SelectListItem>();
   listates.Add(new SelectListItem { Text = "--Select InsuranceCompany--", Value = "0" }); 
    if (states != null){
          foreach (var x in states){
             listates.Add(new SelectListItem { Text = x.CompanyName, Value = x.CompanyName});
          }
    }
    return Json(new SelectList(listates, "Value", "Text", JsonRequestBehavior.AllowGet));
}

 [HttpPost]
 [MultipleButton(Name = "action", Argument = "SearchFilterThirdParty")]
 public ActionResult SearchFilterThirdParty(ParamBlacklistPembayaranViewModel model)
 {
    //code
 }

查看模型

  @Html.EditorFor(model => model.SearchFilterThirdParty, new { htmlAttributes = new { @class = "form-control" } }) //textbox to filter the dropdown below
  <input type="submit" value="Filter" name="action:SearchFilterThirdParty" /> 
  @Html.DropDownListFor(model => model.AddNewThirdParty, ViewBag.country as List<SelectListItem>, new { @class = "form-control" })

public ActionResult GetInsuranceCompany 将根据先前选择的列表（级联DropDownList）调用另一个下拉列表中的所有数据，而我使用ajax使其工作了。我在上面的代码中未包含其他下拉菜单。我知道公共操作结果SearchFilterThirdParty 仍然为空，我想为过滤器创建一个函数，但我不知道如何。任何想法？谢谢。

如何根据我们在文本框中输入的单词来过滤下拉列表中的列表？

0 个答案: