Question

我在互联网上搜索了2天，找到了我的问题的答案，但没有正确答案。

这些是我的课程

public class Player
{
    public int ID { get; set; }

    public string Name { get; set; }

    public string FirstName { get; set; }

    public Team Team { get; set; }

    public int TeamId { get; set; }

public class Team
{
    public int TeamID { get; set; }

    public string Name { get; set; }

    public virtual List<Player> Players { get; set; }

我在我的视图模型中添加了相同的 - ＆gt;

public class CreatePlayerVM
{
    public int ID { get; set; }

    [Display(Name = "Last name")]
    public string Name { get; set; }

    [Display(Name = "First name")]
    public string FirstName { get; set; }

    [ForeignKey("TeamId")]
    public Team Team { get; set; }

    [Required]
    [ForeignKey("Team")]
    [Display(Name = "Team")]
    public int TeamId { get; set; }

public class ListPlayerVM
{
    public int ID { get; set; }

    public string Name { get; set; }

    public string FirstName { get; set; }

    [ForeignKey("TeamId")]
    public Team Team { get; set; }

    public int TeamId { get; set; }

我对球员名单的看法是这样的 - ＆gt;

        @Html.DisplayNameFor(model => model.Name)
        @Html.DisplayNameFor(model => model.FirstName)
        @Html.DisplayNameFor(model => model.Team)
        @Html.DisplayNameFor(model => model.YellowCard)
        @Html.DisplayNameFor(model => model.RedCard)
        @Html.DisplayNameFor(model => model.Goal)

        @foreach (var item in Model)
        @Html.DisplayFor(modelItem => item.Name)
        @Html.DisplayFor(modelItem => item.FirstName)
        @Html.DisplayFor(modelItem => item.Team.Name)
        @Html.DisplayFor(modelItem => item.YellowCard)
        @Html.DisplayFor(modelItem => item.RedCard)
        @Html.DisplayFor(modelItem => item.Goal)

和homeController

    [HttpGet]
    public ActionResult Players()
    {
        List<Player> p1 = Player.GetPlayers();

        List<ListPlayerVM> p2 = new List<ListPlayerVM>();

        foreach (Player p in p1)
        {
            p2.Add(new ListPlayerVM(p.ID, p.Name, p.FirstName, p.Team , p.TeamId, p.Goal, p.YellowCard, p.RedCard));
        }

        return View(p2);
    }

和CreateController

    [HttpPost]
    public ActionResult CreatePlayer(CreatePlayerVM model)
    {
        if (ModelState.IsValid)
        {

            Player player = new Player(model.FirstName, model.Name, model.Team, model.TeamId ,0, 0, 0);
            player.InsertPlayer();

        }
        PopulateTeamsDropDownList(model.TeamId);
        return View(model);
    }

如何在我创建的玩家列表中显示我的teamName？厌倦了在互联网上搜索，希望有人可以帮助我！

https://i.stack.imgur.com/5ELCJ.jpg

    public static Player GetPlayer(int id)
    {
        using (LeagueDBContext ctx = new LeagueDBContext())
        {
            return ctx.Players.Where(a => a.ID == id).SingleOrDefault();
        }
    }

GRTS

Answer 1

问题在于您不会懒得加载您的团队数据。您必须使用虚拟延迟加载它。您的播放器模型应如下所示：

public class Player
{
    public int ID { get; set; }

    public string Name { get; set; }

    public string FirstName { get; set; }

    public virtual Team Team { get; set; }

    public int TeamId { get; set; }
}

如何在玩家列表mvc中显示团队名称

1 个答案: