Question

我在以下代码行中一直收到上述错误：

<select 
 id="buildingSlctRoom@{Model.roomNo;}Request@{Model.RequestNo;}" 
 class="form-control" 
 onchange="fillRooms(@{Model.roomNo;},@{Model.RequestNo;},$('#buildingsslctRoom@{Model.roomNo;}Request@{Model.RequestNo;}').val())" 
 style="width:auto;">

我无法从该代码中看到任何可能导致此问题的内容？

有什么想法吗？

由于

包含roomNo和RequestNo

的类

    namespace Timetabling06.ModelViews
    {
         public class roomCheckerObject
         {
              public string code { get; set; }
              public ICollection<room> rooms { get; set; }  
              public ICollection<room> deptRooms { get; set; }
              public ICollection<building> buildings { get; set; }
              public int roomNo { get; set; }
              public int RequestNo { get; set; }
         }
     }

设置对象变量的代码：

public ActionResult _roomChecker(int roomNum, int requestNum, String user, int roundID, int day, int time, int length,int[] weeks,int students,String roomType,String park, String[] facilities){
        var rooms = db.rooms.Include(r=>r.building).Include(r=>r.facilities);
        rooms = rooms.Where(r => r.capacity >= students);
        if(roomType != "Any"){
            rooms = rooms.Where(r=>r.roomType.Equals(roomType));
        }
        if (park != "Any") { 
            rooms = rooms.Where(r=>r.building.park.Equals(park));
        }

        if (facilities != null)
        {
            for (var i = 0; i < facilities.Length; i++)
            {
                rooms = rooms.Where(r => r.facilities.Any(f => f.facilityName.Equals(facilities[i])));

            }
        }

        var deptRooms = db.rooms.Include(r => r.building).Include(r => r.facilities).Where(r=>r.belongsTo.Equals(user));

        roomCheckerObject suitableRooms = new roomCheckerObject();
        suitableRooms.code = user;
        suitableRooms.roomNo = roomNum;
        suitableRooms.RequestNo = requestNum;
        if(rooms.Count() >0){
            suitableRooms.rooms = rooms.ToList();
            var buildings = rooms.Select(r => r.building).Distinct();
            suitableRooms.buildings = buildings.ToList();
        }


        if(deptRooms.Count() >0){
            suitableRooms.deptRooms = deptRooms.ToList();
        }
        return PartialView(suitableRooms);
    }

Answer 1

@{Model.RequestNo;},$('#buildingsslctRoom@{Model.roomNo;}

将此代码更改为此

@Model.RequestNo,$('#buildingsslctRoom@Model.roomNo

remove {} char，这是执行代码，而不是使用值。 Ot应该解决你的问题。

Answer 2

您正在尝试在html中编写剃刀代码，但您的写作方式不正确。

要在html中编写剃刀代码，您需要这样做：

<select 
id="buildingSlctRoom@(Model.roomNo)Request@(Model.RequestNo)" 
class="form-control" 
onchange="fillRooms('@Model.roomNo','@Model.RequestNo',$('#buildingsslctRoom@(Model.roomNo)Request@(Model.RequestNo)').val())" 
style="width:auto;">

Answer 3

问题是@{Model.roomNo;}被评估为命令。它会给你你的异常，因为它既不是方法调用也不是属性赋值（如异常所写）。

如果您只想输出值@( Model.roomNo)

CS0201：只能将赋值，调用，递增，递减，等待和新对象表达式用作语句

3 个答案: