/// <summary>

        /// List转SelectListItem

        /// </summary>

        /// <typeparam name="T">Model对象</typeparam>

        /// <param name="t">集合</param>

        /// <param name="text">显示值-属性名</param>

        /// <param name="value">显示值-属性名</param>

        /// <param name="empId"></param>

        /// <returns></returns>

        public static List<SelectListItem> CreateSelect<T>(IList<T> t, string text, string value,string empId)

        {

            List<SelectListItem> l = new List<SelectListItem>();

            foreach (var item in t)

            {

                var propers = item.GetType().GetProperty(text);

                var valpropers = item.GetType().GetProperty(value);

                l.Add(new SelectListItem

                {

                    Text = propers.GetValue(item, null).ToString(), Value = valpropers.GetValue(item, null).ToString(),

                    Selected = valpropers.GetValue(item, null).ToString() == empId

                });

            }

            return l;

        }

List<HrEmp> list = LoadData();

List<SelectListItem> emplist = CreateSelect<HrEmp>(list, "EmpName", "EmpId",entity.HrEmpGuid.ToString());

ViewData["Emp"] = new SelectList(emplist, "Value", "Text");

  @Html.DropDownListFor(t => t.HrEmpGuid, ViewData["Emp"] as SelectList, new { @class = "form-control select2" })