Проверка формы не работает в MVC

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я использую mvc5 для моего приложения в этой форме проверка успешно выполнена, и datavalidation будет проверен, но для недопустимых данных сообщение об ошибке не отображается.

Цитата:

мой взгляд таков, как показано ниже

@using (Html.BeginForm("TimeSheet", "TimeSheet", FormMethod.Post))
{
    @*@Html.AntiForgeryToken()*@
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })
    <div class="row">
        <div class="col-sm-3">
            Select Date: <input type="text" id="Date" Name="Date" class="form-control" placeholder="Select Date">
            @Html.ValidationMessageFor(model => model.Date)
            @*<span class="field-validation-valid text-danger"
                      data-valmsg-for="StudentName" data-valmsg-replace="true">
                    The Date field is required.
                </span>*@
        </div>
        <div class=" col-sm-3">
            Select Employee:
            @Html.DropDownListFor(m => m.FullName, Model.EmployeeNamesList, new { @class = "form-control" })
            @Html.ValidationMessageFor(m => m.FullName)
        </div>
    <div class="row">
        <div class="col-sm-3">
            Select InTime:<input type="text" id="Intime" Name="Intime" class="form-control" placeholder="Select InTime">
            @Html.ValidationMessageFor(model => model.Intime)
        </div>
        <div class="col-sm-3">
            Select LunchOut Time:<input type="text" id="LunchOutTime" Name="LunchOutTime" class="form-control" placeholder="Select LunchOut Time">
            @Html.ValidationMessageFor(model => model.LunchOutTime)
        </div>
        <div class="col-sm-3">
            Select LunchIn Time:<input type="text" id="LunchInTime" Name="LunchInTime" class="form-control" placeholder="Select LunchIn Time">
            @Html.ValidationMessageFor(model => model.LunchInTime)
        </div>
        <div class="col-sm-3">
            Select OutTime:<input type="text" id="OutTime" Name="OutTime" class="form-control" placeholder="Select OutTime">
            @Html.ValidationMessageFor(model => model.OutTime)
        </div>
    </div>
    <br />
    <div class="row text-center">
        <input type="submit" value="Submit" style="align-items:center" id="viewdetails" class="btn btn-lg btn-primary" />
    </div>
}
@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

Что я уже пробовал:

моя модель такова:

public class TimeSheet
    {
        public int ID { get; set; }
        public int EmpID { get; set; }
        //[Required]
        [Required]
        [Display(Name = "Select user type:")]
        public DateTime Date { get; set; }
        [Required]
        [Display(Name = "Select user type:")]
        public TimeSpan Intime { get; set; }
        [Required]
        [Display(Name = "Select user type:")]
        public TimeSpan LunchOutTime { get; set; }
        [Required]
        [Display(Name = "Select user type:")]
        public TimeSpan LunchInTime { get; set; }
        [Required]
        [Display(Name = "Select user type:")]
        public TimeSpan OutTime { get; set; }
        [Required]
        public string FullName { get; set; }
        public List<System.Web.Mvc.SelectListItem> EmployeeNamesList { get; set; }

    }

и мой код контроллера таков:

[HttpGet]
        public ActionResult TimeSheet()
        {
            using (SnovaHubEntities entities = new SnovaHubEntities())
            {
                Models.TimeSheet model = new Models.TimeSheet();
                model.EmployeeNamesList = GetEmployeenames(); 
                return View(model);
            }
        }
        public ActionResult ViewTimeSheet()
        {
            return View();
        }
        [HttpPost]
        public ActionResult TimeSheet(Models.TimeSheet model)
        {
            if (ModelState.IsValid) 
            {
                // my Code 
                        
            }
            return RedirectToAction("TimeSheet", "TimeSheet");
}

я не знаю, в чем ошибка в моем коде

Цитата:

и я не знаю об Аяксе так что не могли бы вы помочь мне решить эту проблему

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[HttpPost]
public ActionResult TimeSheet(Models.TimeSheel model)
{
    if (!ModelState.IsValid)
    {
        // Validation failed; re-display the view with the validation errors:
        return View(model);
    }
    
    ...
}