public ActionResult Edit(CausalViewModel model) {
            try{
                var svc = new CausalAppService();

                var o = new Causal{
                    CausalId = model.CausalId,
                    Name = model.Name,
                    CauseType = model.CauseType
                };

                if (model.Action == "-1"){
                    var exist = svc.GetCausal(model.CausalId) != null;
                    if (!exist){
                        svc.AddCausal(o);
                        this.ViewBag.Feed = 0;
                    } else{
                        model.Action = "-1";
                        this.ViewBag.Feed = 3;
                        return this.View(model);
                    }
                } else{
                    o.CausalId = model.CausalId;
                    if (model.IsDeleteAction == 0) svc.SaveCausal(o);
                    else svc.RemoveCausal(model.CausalId);
                    this.ViewBag.Feed = 0;
                }
            } catch (Exception){
                this.ViewBag.Feed = 1;
            }

            return this.View(model);
        }
        /// <summary>
        ///     Edits the specified identifier.
        /// </summary>
        /// <param name="id">The identifier.</param>
        /// <returns>ActionResult.</returns>
        public ActionResult Edit(int id) {
            var model = new CausalViewModel();

            if (id != -1){
                var svc = new CausalAppService();
                var o = svc.GetCausal(id);
                model.CausalId = o.CausalId;
                model.Name = o.Name;
                model.CauseType = o.CauseType;
            } else{
                model.Action = "-1";
                model.CausalId = -1;
                model.Name = string.Empty;
                model.CauseType = string.Empty;
            }

            return this.View(model);
        }