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我有一個事件與顯示事件視圖有關的信息。在這個觀點上,我試着去參加與喜歡類似的功夫,但我沒有什麼問題。我的邏輯很簡單,我想保持它:點擊,它會增加int參加1,但...ASP.NET MVC:Attends /喜歡發貼
首先我進入if(events == null)...第二是有沒有辦法讓每個用戶點擊一次?
這裏是我的代碼:
型號:
[Key]
public int Id { get; set; }
public string EventName { get; set; }
...
public int Attends { get; set; }
事件創建操作:
//POST: Event/Create
[HttpPost]
public ActionResult Create(EventViewModel model)
{
if (ModelState.IsValid)
{
using (var database = new EventSpotDbContext())
{
var events = new Event(model.EventName,...);
...
events.Attends = 0;
database.Events.Add(events);
database.SaveChanges();
return RedirectToAction("Main");
}
}
return View(model);
}
事件參加行動:
public ActionResult Attend(int? id)
{
using (var database = new EventSpotDbContext())
{
var events = database.Events.FirstOrDefault(a => a.Id == id);
if (events == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
events.Attends += 1;
database.SaveChanges();
}
return RedirectToAction("Details");
}
事件詳細操作:
//GET: Event/Details
public ActionResult Details(int? id)
{
using (var database = new EventSpotDbContext())
{
var events = ... .First();
return View(events);
}
}
詳細查看
@model EventSpot.Models.Event
...
@Html.ActionLink("Attend Event", "Attend", "EventController", new {@id=Model.Id})
@Model.Attends
你的問題是在ISSE?從你聲明中不清楚 –
我進入了if(events == null)異常 - HTTP錯誤400.0 - 錯誤請求 –
你有沒有調試過它?用戶界面(視圖)真的傳遞了ID和你的數據庫的作品? –