public async Task <JsonResult> Delete(int?id)
        {
            if (!id.HasValue)
            {
                return(Json(new { success = false }, JsonRequestBehavior.AllowGet));
            }

            var result = await _translationService.DeleteAsync(id.Value);

            if (!result.Success)
            {
                return(Json(new { success = false }, JsonRequestBehavior.AllowGet));
            }

            return(Json(new { success = true }, JsonRequestBehavior.AllowGet));
        }