【发布时间】:2021-07-31 23:12:13
【问题描述】:
我正在尝试学习的应用程序可能很糟糕 这个错误的解决方案是什么? The error i got
控制器 我不确切知道如何制作列表,我尝试的示例不起作用 我想我需要以某种方式列出清单
public IActionResult Rooms()
{
using (var db = new HotelWebContext())
{
var roomList = db.Rooms.Where(z => z.OtherTypeId == z.OtherType.OtherTypeId && z.RoomTypeId == z.RoomType.RoomTypeId && z.StatusId == z.Status.RoomStatusId).Select(r => new { r.RoomId, r.OtherType.OtherTypeName, r.OtherType.BasePrice, r.OtherType.Capacity, r.OtherType.BedType, r.OtherType.Services, r.RoomType.RoomTypeName, r.Status.RoomStatusName }).ToList();
return View(roomList);
}
}
型号 我用实体框架自动创建的
public partial class Room
{
public Room()
{
Reservations = new HashSet<Reservation>();
}
public int RoomId { get; set; }
public int? RoomTypeId { get; set; }
public int? OtherTypeId { get; set; }
public int? StatusId { get; set; }
public virtual OtherType OtherType { get; set; }
public virtual RoomType RoomType { get; set; }
public virtual RoomStatus Status { get; set; }
public virtual ICollection<Reservation> Reservations { get; set; }
}
Rooms.cshtml 有一个 foreach 循环
@model IEnumerable<WebApplication3.Models.Room>
@{
ViewData["Title"] = "Odalarımız";
ViewData["Dark"] = "text-dark";
ViewData["Info"] = "text-info";
}
<div class="odafiyatlari mx-auto">
<div class="odaimg">
<div class="container">
<h1 style="margin-top: 200px; margin-bottom: 200px;font-family: 'Playfair Display', serif;" class="text-center text-dark ">ODALARIMIZ</h1>
<div class="row">
<!-- @for (int i = 0; i < 0; i++)
{
<div class="col-xl-4 py-4">
<div style="border-radius: 10px;" class="card mx-auto" style="width: 18rem;">
<img class="card-img-top " src="~/images/oda1.jpg" alt="Card image cap">
<div class="card-body">
<h6 class="card-text">Durum:Uygun</h6><br>
<h5 class="card-title">İki Kişilik İkiz Yataklı Oda</h5>
<h5 class="card-title">Oda Tipi:Aile</h5>
<h6 class="card-text">399₺ / Gecelik</h6><br>
<h6 class="card-text">Kapasite: İki Kişilik</h6><br>
<h6 class="card-text">Yatak: Kral Yatak</h6><br>
<h6 class="card-text">Servis: İnternet, Televizyon, Duş</h6><br>
<a href="#" class="btn btn-info">Odayı Seç</a>
</div>
</div>
</div>
}-->
@foreach (var item in Model)
{
<div class="col-xl-4 py-4">
<div style="border-radius: 10px;" class="card mx-auto" style="width: 18rem;">
<img class="card-img-top " src="~/images/oda1.jpg" alt="Card image cap">
<div class="card-body">
<h6 class="card-text">Durum:@item.Status.RoomStatusName</h6><br>
<h5 class="card-title">@item.OtherType.OtherTypeName</h5>
<h5 class="card-title">Oda Tipi:@item.RoomType.RoomTypeName</h5>
<h6 class="card-text">@item.OtherType.BasePrice₺ / Gecelik</h6><br>
<h6 class="card-text">Kapasite: @item.OtherType.Capacity</h6><br>
<h6 class="card-text">Yatak: @item.OtherType.BedType</h6><br>
<h6 class="card-text">Servis: @item.OtherType.Services</h6><br>
<a href="#" class="btn btn-info">Odayı Seç</a>
</div>
</div>
</div>
}
</div>
</div>
</div>
</div>
<!--ODA BİTİŞ-->
【问题讨论】:
-
db.Rooms.Where 返回错误,调试并查看错误是什么,这应该会引导您找到解决方案。
-
@Harv 我其他模型的内容不来,据我了解image
-
嗨@Hüseyin Dönmez,您需要返回
List<Room>而不是List<anonymous>。您的模型包含其他模型,因此您需要使用.Include()附加相关模型。在下面检查我的答案。
标签: c# entity-framework model-view-controller asp.net-core-mvc