ASP.NET MVC有两个参数问题

Well I want to pass two parameters using Json to the controller, where i use a query to get result....

好吧,我想使用Json将两个参数传递给控制器,在那里我使用查询来获得结果....

Now I manage to pass one parameter(first one) but the second just wont work, if i did Price/4 is will work but adding /2 says 404 in console...

现在我设法传递一个参数(第一个),但第二个只是不工作,如果我做Price / 4将工作但添加/ 2在控制台中说404 ...

//Passing ID 4 and ID 3 to HomeController/Price
$(document).ready(function () {
  $("#type, #States").change(function () {
      $.getJSON('/Home/Price/4/2', function (data) {
          var items = '<option>Select a State</option>';
          $.each(data, function (i, state) {
             items += "<option value='" + state.Value + "'>" + state.Text +"</option>";
          });
          $("#Price").html(items);
      });
  });
});

//Home Controller Function

// Home Controller Function

public JsonResult States(int id, int ids)
    {
        using (TalyllynContext db = new TalyllynContext())
        {
            var query = from F in db.Fares
                        join p in db.TicketPreferences on
                        F.TicketPreferenceID equals p.ID
                        where F.TicketTypeID == id &&
                        F.TicketPreferenceID == ids
                        select p;

            return Json(new SelectList(query.ToList(), "ID", "Name"),
            JsonRequestBehavior.AllowGet);
        }
    }

Any more just let me know....

还有更多让我知道....

1 个解决方案

#1

You should define such behavior in the route or use the query parameters. I've improved JavaScript code with tips from Stephen Muecke.

您应该在路由中定义此类行为或使用查询参数。我使用Stephen Muecke的提示改进了JavaScript代码。

Query parameters approach:

查询参数方法:

$(document).ready(function () {
  $("#type, #States").change(function () {
//It's better to use Url.Action helper to construct your urls,
//So that they always will be in sync with your routes
      $.getJSON('@Url.Action("Price", "Home", new {id=4, ids=2})', function (data) {              
          var price = $("#Price");
          price.append($('<option></option>').val('').text('Select a State'));
          $.each(data, function (i, state) {
             price.append($('<option></option>').val(state.value).text(state.text))                 
          });
      });
  });
});

Or as stated by Stephen Muecke:

或者如Stephen Muecke所说:

$(document).ready(function () {
  $("#type, #States").change(function () {
      $.getJSON('@Url.Action("Price", "Home")', {id: 2, ids: 3}, function (data) {
          var price = $("#Price");
          price.append($('<option></option>').val('').text('Select a State'));
          $.each(data, function (i, state) {
             price.append($('<option></option>').val(state.value).text(state.text))                 
          });
      });
  });
});

Route approach:

routed.MapRoute("Name", "{controller}/{action}/{id}/{ids}",
new {controller = "Home", action = "Index", ids=UrlParameter.Optional});

#1