asp.net-mvc - 来自另一个带有传递参数的 Controller 的 Html.RenderAction

Question

我有 2 个模型:Player 和 PlayerAchievement

 public class Player
 {
    [Required]
    public String clubName { get; set; }
    [Required]
    public String id { get; set; }
    [Required]
    public int number { get; set; }
    [Required]
    public String name { get; set; }
    [Required]
    public String position { get; set; }
    [Required]
    public DateTime dateOfBirth { get; set; }
    [Required]
    public string placeOfBirth { get; set; }
    //TODO: Remember to change variable name
    [Required]
    public double weight { get; set; }
    [Required]
    public double height { get; set; }
    [Required]
    public String description { get; set; }
    [Required]
    public String imageLink { get; set; }
    [Required]
    public Boolean status { get; set; }
}

public class PlayerAchievement
{
    [Key]        
    public String playerID { get; set; }               
    [Required]
    public String achievementName { get; set; }
    [Required]
    public int number { get; set; }
}

玩家有详细信息 View ，显示玩家的详细信息。我想在那里渲染 ShowPlayerAchievement View 。但是，ShowPlayerAchievement 操作位于 PlayerAchievement Controller

public ActionResult ShowAchievementsList(String playerID)
{
   return View(_repository.GetPlayerAchievementsByPlayerID(playerID));
}

正如你在上面看到的，该方法需要播放器的playerID，所以我在Player的Details.cshtml中尝试了@Html.RenderAction这段代码 看看它是否有效，但没有。

@Html.RenderAction("ShowAchievementsList", "PlayerAchievement", new { playerID = Model.id })

总而言之，如何使用 Player 中的 playerID 参数从 PlayerAchievement Controller 调用 ShowAchievementList 操作？

更新 这段代码不显示错误 @Html.Action("ShowAchievementsList", "PlayerAchievement", new {playerID = Model.id });

但是我在 PlayerAchievementRepository 类的构造函数中遇到 NullReferenceException。

公共(public)类PlayerAchievementRepository:IPlayerAchievementRepository {

    public List<PlayerAchievement> allPlayerAchievements;
    private XDocument playerAchievementData;

    public PlayerAchievementRepository()
    {
        allPlayerAchievements = new List<PlayerAchievement>();

        playerAchievementData = XDocument.Load(HttpContext.Current.Server.MapPath("~/App_Data/player_management.xml"));
//Error show here
        var playerAchievements = from playerAchievement in playerAchievementData.Descendants("player_achievement")                                     
                      select new PlayerAchievement((int) playerAchievement.Element("number"), playerAchievement.Element("playerID").Value, 
                          playerAchievement.Element("achievementName").Value);                allPlayerAchievements.AddRange(playerAchievements.ToList<PlayerAchievement>());
//other logic codes...

    }

在player_management.xml

<player_achievement>
        <number>3</number>
        <playerId>01</playerId>
        <achievementName>European Cup</achievementName>
</player_achievement>

Answer 1

尝试以下两种语法之一:

 @{Html.RenderAction("ShowAchievementsList", "PlayerAchievement", new { playerID = Model.id });}

或

 @Html.Action("ShowAchievementsList", "PlayerAchievement", new { playerID = Model.id });