Question

我是MVC的新手，我正在尝试为某个View创建一个ViewModel。我很难过，无法在网上找到一个简单的解释，说明如何制作一个包含两个简单表格的视图 - 一个显示Player.cs中所有玩家的列表，另一个显示季节中所有季节的列表。 CS。我能够在使用EF的单独视图中执行此操作，但无法创建一个显示两个表的视图。感谢您帮助MVC的新手，我希望这将有助于其他初学者。

这是我的三个型号。首先是Player.cs

using System;
using System.Collections.Generic;

namespace TheFlyingPig.Models
{
    public class Player
    { 
        public int ID { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }

        public virtual ICollection<Stat> Stats { get; set; }
    }
}

下一个模型是Season.cs

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;

namespace TheFlyingPig.Models
{
    public class Season
    {
        public int SeasonID { get; set; }
        public string SeasonName { get; set; }

        public virtual ICollection<Stat> Stats { get; set; }
    }
}

第三个模型是Stat.cs

namespace TheFlyingPig.Models
{
    public class Stat
    {
        public int StatID { get; set; }
        public int SeasonID { get; set; }
        public int PlayerID { get; set; }
        public int Hits { get; set; }

        public virtual Season Season { get; set; }
        public virtual Player Player { get; set; }
    }
}

以下是我要创建的ViewModel：TeamStat.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using TheFlyingPig.Models;

namespace TheFlyingPig.ViewModels
{
    public class TeamStat
    {
        public List<Player> Players { get; set; }

        public List<Season> Seasons { get; set; }
    }
}

这是我的控制器：

using System.Data;
using System.Data.Entity;
using System.Net;
using TheFlyingPig.Models;
using TheFlyingPig.ViewModels;

namespace TheFlyingPig.Controllers
{
    public class HomeController : Controller
    {
        private SoftballContext db = new SoftballContext();

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

        public ActionResult TeamStat()
        {
            var players = db.Players().ToList();
            var seasons = db.Seasons().ToList();

            var view = new TeamStat(players, seasons);
            return View(view);
        }
    }
}

以下是我的观点：TeamStat.cshtml

@model TheFlyingPig.ViewModels.TeamStat

@{
    ViewBag.Title = "Team Stats";
}

<h2>Team Stats</h2>

@foreach (var player in Model._players) 
{
    <table>
        <thead>
            <tr>
                <th>First Name</th>
                <th>Last Name</th>
            </tr>    
        </thead>
        <tbody>
            <tr>
                <td>@player.FirstName</td>
                <td>@player.LastName</td>
            </tr>
        </tbody>
    </table>
}

<br /><br /><br />

@foreach (var season in Model._seasons) 
{
    <table>
        <thead>
            <tr>
                <th>Season Name</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>@season.SeasonName</td>
            </tr>
        </tbody>
    </table>
}

Answer 1

首先，在返回视图之前，您当前没有设置视图模型的属性（您没有接受2个参数的构造函数）

public ActionResult TeamStat()
{
  var players = db.Players().ToList();
  var seasons = db.Seasons().ToList();
  var view = new TeamStat()
  {
    Players = players,
    Seasons = seasons
  };
  return View(view);
}

其次，您的观点指的是不存在的属性_players和_seasons。它应该是

@foreach (var player in Model.Players) { ....

和

@foreach (var player in Model.Seasons) { ....

创建简单的ViewModel以在MVC 5中的一个视图中显示两个数据表

1 个答案: