Validation Error not Displayed

Hi

        public Location()
        {
        }

        [Key]
        [Required]
        [RegularExpression(@"^[a-zA-Z'.\s]{1,4}$", ErrorMessage = "Special Characters not allowed")]
        [Display(Name = "Id")]
        public string Id { get; set; }

        [DataType(DataType.Text)]
        [RegularExpression(@"^[a-zA-Z'.\s]{1,25}$", ErrorMessage = "Special Characters not allowed")]
        [Required(ErrorMessage = "Please enter Location"), MaxLength(25)]
        [Display(Name = "Description")]
        public string Description { get; set; }

    }

********************************************************************************

@model MyApplication.Models.Location

@{
    Layout = "~/Views/Shared/_Layout.cshtml";
}

   
   

    @using (Html.BeginForm("CreateEdit", "Location", FormMethod.Post, new { @id = "locationFormId", @class = "form-horizontal", role = "form" }))
    {
        @Html.AntiForgeryToken()

Thanks