相关疑难解决方法(0)

这段代码以前对我有用,但我不确定是什么导致了这个错误.我唯一的猜测是,当我尝试创建一个播放器时,团队数据将被发送回Team表并尝试复制,但由于TeamId是唯一的,因此出现此错误.

错误

INSERT语句与FOREIGN KEY约束"FK_dbo.Players_dbo.Teams_TeamId"冲突.冲突发生在数据库"Web",表"dbo.Teams",列'TeamId'中.该语句已终止.

播放机

public class Player
{
    ...
    ...

    [HiddenInput(DisplayValue = false)]
    [ForeignKey("Team")]
    public int TeamId { get; set; }        

    public virtual Team Team { get; set; }

    ...
}

球队

public class Team
{
    [Key]
    [HiddenInput(DisplayValue = false)]
    public int TeamId { get; set; }

    ....

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

调节器

//
    // GET: /Player/
    [HttpGet]
    public ActionResult Create()
    {
        PopulateTeamsDropDownList();
        return View();
    }

    //
    // POST: /Player/
    [HttpPost]
    public ActionResult Create(Player …