C# .Net ขอคำปรึกษา/สอบถาม การแปลง Entity Framework to SQL หน่อยครับ (มี Code ด้านใน)

/// <summary>
/// Get All Users
/// </summary>
/// <returns>List<Users>()</Users></returns>
[HttpGet]
[Route("GetAllUsers")]
public async Task<List<Users>> GetAllUsers() {
    var lstUser = new List<Users>();
    using (var cn = SexyDatabase.SexyConnection(forceOpen: true)) {
        cn.ChangeDatabase("FuckerConfigDB"); // Fly with imagine.
        try {
            var tmp1 = await cn.GetListAsync<Users>();
            //var tmp2 = await cn.GetListAsync<Users>(new { UserCode = "Fucker"});
            // tmp2 SQL Raw : select * from Users where UserCode = 'Fucker'
            lstUser = tmp1.ToList();
        }
        catch (Exception ex) {
            Console.WriteLine(ex.Message);
        }
    }
    return lstUser;
}

 // ผู้ป้อนข้อมูล (Table Users)
 wlsAjaxHandler.execute("GET", "/api/Security/GetAllUsers", null, function (res) {
     let tmp = null;
     let he = $('#cboZUser');
     he.empty();//.trigger("change"); 
     var options = he.get(0).options;
     options[options.length] = new Option(CUR_LANG != 'en' ? "ทุกท่าน" : "All Users", "");
     tmp = he.select2({
         width: "100%",
         data: $.map(res, function (obj) {
             let tmpDesc = (CUR_LANG != "en") ? obj.username : obj.usernameus;
             obj.id = obj.id || obj.usercode; // replace pk/value with your identifier
             obj.text = obj.text || tmpDesc;
             return obj;
         }),
     });
 }, (error) => { alert(error);});