传递到字典中的模型项的类型为“VillaSite.Models.ReservationForm”，但此字典需要类型为“System”的模型项

问：

当我从网页提出预订请求时，它给出了以下错误。我在电脑上写了网页代码。我调试。没有问题，该站点在本地ISP上完美运行。但是当我将站点代码上传到托管公司时，站点的某些部分会出现错误。我再次检查计算机上的代码以查看是否有错误，然后再次生成和调试。没有错误。因此，在托管公司上出现错误的代码在我的本地计算机和 ISP 上正常工作。我不知道该怎么办。这是我从托管公司获得的错误代码。

“/”应用程序中的服务器错误。 传递到字典中的模型项的类型为“VillaSite.Models.ReservationForm”，但此字典需要类型为“System.Collections.Generic.IEnumerable'1[VillaSite.Models.ReservationForm]”的模型项。 说明：执行当前 Web 请求期间发生未经处理的异常。请查看堆栈跟踪，了解有关错误及其在代码中的来源的详细信息。

异常详细信息：System.InvalidOperationException：传递到字典中的模型项的类型为“VillaSite.Models.ReservationForm”，但此字典需要类型为“System.Collections.Generic.IEnumerable'1[VillaSite.Models.ReservationForm]”的模型项。

源错误：

在执行当前 Web 请求期间生成了未经处理的异常。可以使用下面的异常堆栈跟踪来识别有关异常来源和位置的信息。

堆栈跟踪：

[InvalidOperationException：传递到字典中的模型项的类型为“VillaSite.Models.ReservationForm”，但此字典需要类型为“System.Collections.Generic.IEnumerable1.SetModel（Object value） +175”的模型项 System.Web.Mvc.ViewDataDictionary..ctor（ViewDataDictionary字典） +107 System.Web.Mvc.WebViewPage1 筛选器、 Int32 filterIndex、 ResultExecutingContext preContext、 ControllerContext controllerContext、 ActionResult 操作结果） +56 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive （IList1 筛选器，ActionResult actionResult） +52 System.Web.Mvc.Async.<>c__DisplayClass3_6.b__4（） +198 System.Web.Mvc.Async.<>c__DisplayClass3_1.b__1 （IAsyncResult 异步结果） +100 System.Web.Mvc.Async.WrappedAsyncResult1.End（） +49 System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction（IAsyncResult asyncResult） +44 System.Web.Mvc.<>c.b__152_1 （IAsyncResult asyncResult， ExecuteCoreState innerState） +11 System.Web.Mvc.Async.WrappedAsyncVoid1.End（） +49 System.Web.Mvc.Controller.EndExecuteCore（IAsyncResult，异步结果）+47 System.Web.Mvc.<>c.b__151_2（IAsyncResult asyncResult，控制器控制器） +13 System.Web.Mvc.Async.WrappedAsyncVoid1.End（） +49 System.Web.Mvc.Controller.EndExecute（IAsyncResult 异步结果） +28 System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute（IAsyncResult asyncResult） +10 System.Web.Mvc.<>c.b__20_1 （IAsyncResult asyncResult， ProcessRequestState innerState） +28 System.Web.Mvc.Async.WrappedAsyncVoid1.End（） +49 System.Web.Mvc.MvcHandler.EndProcessRequest（IAsyncResult，异步结果）+28 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest（IAsyncResult 结果） +9 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute（） +9850569 System.Web.HttpApplication.ExecuteStepImpl （IExecutionStep 步骤） +50 System.Web.HttpApplication.ExecuteStep （IExecutionStep 步骤， Boolean& completedSynchronously） +1631[VillaSite.Models.ReservationForm]'.] System.Web.Mvc.ViewDataDictionary1.SetViewData(ViewDataDictionary viewData) +49 System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance) +99 System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer) +107 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +291 System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +13 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) +420 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList1.CallEndDelegate(IAsyncResult asyncResult) +10 System.Web.Mvc.Async.WrappedAsyncResultBase1.CallEndDelegate(IAsyncResult asyncResult) +29 System.Web.Mvc.Async.WrappedAsyncResultBase1.CallEndDelegate(IAsyncResult asyncResult) +22 System.Web.Mvc.Async.WrappedAsyncResultBase1.CallEndDelegate(IAsyncResult asyncResult) +29 System.Web.Mvc.Async.WrappedAsyncResultBase

版本信息： Microsoft .NET Framework 版本：4.0.30319;ASP.NET 版本：4.8.4667.0

相关页面代码如下;

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web;

namespace VillaSite.Models
{
    public class ReservationForm
    {

        public int Id { get; set; }

        [Display(Name = "Ad Soyad")]
        [Required]
        public string Fullname { get; set; }

        [Display(Name = "Telefon")]
        [Required]
        public string Phone { get; set; }

        [Display(Name = "E-posta")]
        [Required]
        [EmailAddress]
        public string Email { get; set; }

        [Display(Name = "Villa Adı")]
        [Required]
        public string VillaName { get; set; }

        [Display(Name = "Rezervasyon Başlangıç Tarihi")]
        [Required]
        public DateTime CheckInDate { get; set; }

        [Display(Name = "Rezervasyon Bitiş Tarihi")]
        [Required]
        public DateTime CheckOutDate { get; set; }

        [Display(Name = "İşlemi Tamamlandı")]
        public bool IsCompleted { get; set; }

        public List<ReservationForm> ReservationForms { get; set; }
    }

}  


public ActionResult ReservationForm(string villaNameFilter)
{
    using (var db = new DataContext())
    {
        var reservations = db.ReservationForms.AsQueryable();

        if (!string.IsNullOrEmpty(villaNameFilter))
        {
            reservations = reservations.Where(r => r.VillaName.Contains(villaNameFilter));
        }

        return View(reservations.ToList<ReservationForm>());

    }
}


[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult ReservationForm(ReservationForm reservationform)
{
    if (ModelState.IsValid)
    {
        try
        {
            // Save the reservation data to the database
            using (var db = new DataContext())
            {
                db.ReservationForms.Add(reservationform);
                db.SaveChanges();
            }

            // Redirect to the success page
            return RedirectToAction("Success", "Home"); // Assumes "Success" is the name of the action to show the success view
        }
        catch (Exception ex)
        {
            // Log the exception (optional)
            // You can use a logging framework like Serilog, NLog, or log4net to log the exception.
            Console.WriteLine("Error retrieving reservations: " + ex.Message);
            // Show an error message to the user
            TempData["ErrorMessage"] = "Rezervasyon Tarihlerini Kayıt Ederken Bir Hata Oluştu";
        }
    }

    // If the model state is invalid, return to the same view with validation errors
    //return View(reservationform);
    return View(new List<ReservationForm> { reservationform });

}  


@model IEnumerable<VillaSite.Models.ReservationForm>                                                                 <h2>Rezervasyon Talep Formu</h2>

@using (Html.BeginForm("ReservationForm", "AdminPanel", FormMethod.Get))
{
    <div class="form-group">
        @Html.Label("Villa Adı İle Listele")
        @Html.TextBox("villaNameFilter", Request.QueryString["villaNameFilter"], new { @class = "form-control" })
    </div>
    <br />
    <button type="submit" class="btn btn-primary">Filtrele</button>
}


<table class="table">
    <tr>
        <th>
            @Html.DisplayNameFor(model => model.Fullname)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Phone)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.Email)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.VillaName)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.CheckInDate)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.CheckOutDate)
        </th>
        <th>
            @Html.DisplayNameFor(model => model.IsCompleted)
        </th>
        <th></th>
    </tr>

    @foreach (var item in Model)
    {
        <tr>
            <td>
                @Html.DisplayFor(modelItem => item.Fullname)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Phone)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Email)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.VillaName)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.CheckInDate)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.CheckOutDate)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.IsCompleted)
            </td>
            <td>
                @Html.ActionLink("Güncelle", "ReservationsListEdit", new { id = item.Id }) |
                @*@Html.ActionLink("Sil", "ReservationsListDelete", new { id=item.Id }) |*@

            </td>
        </tr>
    }

</table>

My expectation is that the related codes work properly and the reservation request appears in the admin panel.