当列表传递给 cshtml 页面时，它不想打开

Question

我最近开始在 ASP.NET 中编写我的第一个项目（名称 - 查找门票（火车/飞机）的网站），我遇到了一个问题，当我想以列表的形式发送数据时，它就停止工作了😭，但是如果我通过了，那么对象就全部转移了，没有问题

附注我会在 GitHub 上留下链接，希望有人能帮助我解决问题😔 链接Github

这里这个方法不起作用（

 public async Task<IActionResult> FindTickets(Tickets tickets)
 {
     var availableTickets = await _tickets.GetAll();

     var find = availableTickets.Where(t => t.StartAirport == tickets.StartAirport && t.EndAirport == tickets.EndAirport);

     return View(find);
 }

这才是应该转移的地方（别看这么吓人，都是为了测试，仅此而已）

@model List<Tickets>

@{
    ViewData["Title"] = "Tickets";
}

@foreach (var ticket in Model)
{
    <h1>@ticket.Id</h1>

    <h1>@ticket.StartAirport</h1>

    <h1>@ticket.EndAirport</h1>

    <h1>@ticket.DepartureDate</h1>

    <h1>@ticket.ArrivalDate</h1>

    <h1>@ticket.ClassSeat</h1>
}

全班

using AviaTikets.Interfaces;
using AviaTikets.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore.Metadata.Internal;
using System.Diagnostics;
using System.Net.Sockets;

namespace AviaTikets.Controllers
{
    public class AirTicketsController : Controller
    {
        private readonly ILogger<AirTicketsController> _logger;

        private readonly ITickets _tickets;

        public AirTicketsController(ILogger<AirTicketsController> logger, ITickets tickets)
        {
            _logger = logger;
            _tickets = tickets;
        }

        public async Task<IActionResult> FindTickets(Tickets tickets)
        {
            var availableTickets = await _tickets.GetAll();

            var find = availableTickets.Where(t => t.StartAirport == tickets.StartAirport && t.EndAirport == tickets.EndAirport);

            return View(find);
        }

        public IActionResult Index()
        {
            return View();
        }

        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult Error()
        {
            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
        }


        public async Task<IActionResult> GetAll()
        {
            var ticketsList = await _tickets.GetAll();

            return Ok(ticketsList);
        }


        public async Task<IActionResult> GetTiket(int id)
        {
            var ticketsId = await _tickets.GetTiketsById(id);

            return Ok(ticketsId);
        }


        [HttpPost]
        public async Task<IActionResult> Set(Tickets tickets)
        {
            _tickets.Add(tickets);

            return Ok(tickets);
        }

        public async Task<IActionResult> Delete(int id)
        {
            var tikets = await _tickets.GetTiketsById(id);
            if (tikets is null)
            {
                return Ok("Він пустий (");
            }

            _tickets.Delete(tikets);

            return Ok();
        }


        [HttpPost]
        public async Task<IActionResult> Update(int id, Tickets ticketsProp)
        {
            var tikets = await _tickets.GetTiketsById(id);
            if (tikets is null)
            {
                return Ok("Не знайдено (");
            }

            var newTikes = new Tickets
            {
                StartAirport = ticketsProp.StartAirport,
                EndAirport = ticketsProp.EndAirport,
                DepartureDate = ticketsProp.DepartureDate,
                ArrivalDate = ticketsProp.ArrivalDate,
                ClassSeat = ticketsProp.ClassSeat,
            };


            _tickets.Update(newTikes);
            return Ok();
        }



    }
}

Answer 1

您实际上并未将

List<Tickets>

传递到您的页面。您正在传递一个从

IEnumerable

调用返回的

Where

。

试试这个：

 return View(find.ToList());

或者这个：

@model IEnumerable<Tickets>