public JsonResult CreateSkill(Skill skill)
        {
            try
            {
                if (!ModelState.IsValid)
                {
                    return Json(new { Result = "ERROR", Message = "Form is not valid! Please correct it and try again." });
                }

                var addedSkill = db.Skills.Add(skill);
                db.SaveChanges();
                return Json(new { Result = "OK", Record = addedSkill });
            }
            catch (Exception ex)
            {
                return Json(new { Result = "ERROR", Message = ex.Message });
            }
        }
        public JsonResult UpdateSkill(Skill skill)
        {
            try
            {
                if (!ModelState.IsValid)
                {
                    return Json(new { Result = "ERROR", Message = "Form is not valid! Please correct it and try again." });
                }

                db.Entry(skill).State = EntityState.Modified;
                db.SaveChanges();
                return Json(new { Result = "OK" });
            }
            catch (Exception ex)
            {
                return Json(new { Result = "ERROR", Message = ex.Message });
            }
        }