Question

这是我的模特课。是的，我的模型类有集合属性

我想在用户登录时只循环一次循环，只显示该登录用户

块引用

    [Table("Booking")]
    public partial class Booking
    {
     [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public Booking()
    {
        Cancels = new HashSet<Cancel>();
    }

    [Key]
    [Column("BookingId")]
    [Display(Name = "Booking Id")]
    [Required(ErrorMessage = "Booking Id is required...")]
    public int BookingId { get; set; }

    [Column("BookingStartDateandTime")]
    [Display(Name = "Booking Start Date and Time"), Required(ErrorMessage = "Booking Start Date and Time is reqired...")]
    public DateTime BookingStartDateandTime { get; set; }

    [Column("BookingEndDateandTime")]
    [Display(Name = "Booking End Date and Time"), Required(ErrorMessage = "Booking End Date and Time is reqired...")]
    public DateTime BookingEndDateandTime { get; set; }

    [Column("UserContactNo")]
    [Required(ErrorMessage = "User Contact No is required..."), Display(Name = "User Contact No")]
    [StringLength(50)]
    public string UserContactNo { get; set; }

    [Column("UserStartingLoaction")]
    [Required(ErrorMessage = "User Starting Loaction is required..."), Display(Name = "User Starting Loaction")]
    public string UserStartingLoaction { get; set; }

    [Column("UserDistination")]
    [Required(ErrorMessage = "User Distination is required..."), Display(Name = "User Distination")]
    public string UserDistination { get; set; }

    [Column("StatusId")]
    [Display(Name = "StatusId")]
    public int? StatusId { get; set; }

    public virtual BookingStatus BookingStatus { get; set; }

    [Column("TaxiId")]
    [Display(Name = "Taxi Name")]
    public int? TaxiId { get; set; }

    public virtual Taxi Taxi { get; set; }

    [Column("UserId")]
    [Display(Name = "User Id")]
    public int? UserId { get; set; }

    public virtual UserAccount UserAccount { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<Cancel> Cancels { get; set; }
}

}

我想显示当前登录的用户的预订记录，而不是所有用户的预订记录

如何使用foreach循环显示登录用户记录

     if (Session["LoginRole"].ToString() == "User" 
      &&Session["UserId"].ToString() == 
   Model.FirstOrDefault().UserId.ToString())
  {
   <table class="table">
@foreach (var item in Model)
{
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.BookingStatus.Status)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Taxi.TaxiName)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.UserAccount.FirstName)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.BookingStartDateandTime)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.BookingEndDateandTime)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.UserContactNo)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.UserStartingLoaction)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.UserDistination)
        </td>
        <td>
            @Html.ActionLink("Edit", "Edit", new { id = item.BookingId})|
            @Html.ActionLink("Details", "Details", new { id = item.BookingId }) |
            @Html.ActionLink("Delete", "Delete", new { id = item.BookingId })
         </td>
     </tr>
 }

</table>
}

这是控制器

public ActionResult Index()
{
    var bookings = db.Bookings.Include(u => u.UserAccount).Include(t => 
t.Taxi).Include(s => s.BookingStatus);
    return View(db.Bookings.ToList());

Answer 1

Index（）动作通常用于显示集合。您已获得指向Details（）操作的链接，该操作通常显示单个记录。所以你应该有一个细节行动：

public ActionResult Details(int bookingId)
{
    var booking = db.Bookings
        .Include(u => u.UserAccount)
        .Include(t => t.Taxi)
        .Include(s => s.BookingStatus)
        .Single(b => b.BookingId = bookingId);
    return View(booking);
}

然后，您将创建一个与此类似的详细信息视图：

@model Booking
@{
    ViewBag.Title = "Booking Details";
}
<h2>Booking Details</h2>
     <div>
        <dt>Status</dt>
        <dd>
           @Html.DisplayFor(model=> model.BookingStatus.Status)
        </dd>
        <dt>Taxi Name</dt>
        <dd>
            @Html.DisplayFor(model=> model.Taxi.TaxiName)
        </dd>

        [repeat for other fields]

        </dl>
    </div>
}

如何从记录列表中显示单个记录

1 个答案: