如何将会话值与当前用户ID进行比较

Question

1. 如何将会话值与当前用户ID进行比较。
2. 仅显示该用户登录的记录。
3. 在这里，我加入了三个表来制作这个视图。
4. if (Session["UserId"] == Model.userAccount.UserId)以下是我收到错误的代码。



代码：

@model IEnumerable<OnlineTaxiReservationSystem.Models.BookingViewModel>

  @{
     ViewBag.Title = "Index";
   }

   <h2 id="h1">Bookings Detail</h2>

   <p>
   @Html.ActionLink("Add New Booking", "Create")
   </p>
   @if (Session["User"] == null)
   {
   Response.Redirect(Url.Action("Login", "Account"));
   }
   else if (Session["LoginRole"].ToString() == "Admin")
   {
   <table class="table">
   <tr>
    <th>
        @Html.DisplayNameFor(model => model.taxi.TaxiName)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.userAccount.FirstName)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.BookingStartDateandTime)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.BookingEndDateandTime)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.UserContactNo)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.UserStartingLoaction)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.UserDistination)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.bookingStatus.Status)
    </th>
    <th></th>
</tr>

  @foreach (var item in Model)
  {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.taxi.TaxiName)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.userAccount.FirstName)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.BookingStartDateandTime)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.BookingEndDateandTime)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.UserContactNo)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.UserStartingLoaction)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.UserDistination)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.bookingStatus.Status)
        </td>
        <td>
            @Html.ActionLink("Edit", "Edit", new { id = item.booking.BookingId }) |
            @Html.ActionLink("Details", "Details", new { id = item.booking.BookingId }) |
            @Html.ActionLink("Delete", "Delete", new { id = item.booking.BookingId })
        </td>
    </tr>
   }

   </table>
   }
   else if (Session["UserId"] == Model.userAccount.UserId) 

   {

    <table class="table">
    <tr>
    <th>
        @Html.DisplayNameFor(model => model.taxi.TaxiName)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.userAccount.FirstName)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.BookingStartDateandTime)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.BookingEndDateandTime)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.UserContactNo)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.UserStartingLoaction)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.booking.UserDistination)
    </th>
    <th>
        @Html.DisplayNameFor(model => model.bookingStatus.Status)
    </th>
    <th></th>
    </tr>

    @foreach (var item in @Model)
    {
     <tr>
        <td>
            @Html.DisplayFor(modelItem => item.taxi.TaxiName)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.userAccount.FirstName)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.BookingStartDateandTime)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.BookingEndDateandTime)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.UserContactNo)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.UserStartingLoaction)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.booking.UserDistination)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.bookingStatus.Status)
        </td>
       </tr>
     }

    </table>
   }

Answer 1

模型是BookingViewModel的枚举，因此该语句将失败：

else if (Session["UserId"] == Model.userAccount.UserId) 

因为Model是一组商品，而不仅仅是一件商品。

您需要做的是查找用户帐户并显示它：

//This is the else statement that was giving you trouble. Change it to:
else
{
    string sessionId = Session["UserId"] as string;
    var account = Model.FirstOrDefault(a => a.userAccount.UserId == sessionId);
    if(account != null)
    {
        //Use your display code here
    }
    else
    {
        //Figure out what to do if for some odd reason, you can't find it.
    }
}

快速代码示例假定userId为string。根据需要使用铸造。

我建议创建一个部分视图来显示字段而不是代码重复。

Answer 2

您可以通过User的{​​{1}}属性执行此操作。不要在会话中保存用户ID 假设您有经过身份验证的用户，并且他有角色＆amp;身份。

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