public async Task <ActionResult> Settings(DistrictSettingsModel districtSettingsModel)
        {
            districtSettingsModel.SalesManDetailsModel.ForEach(o => o.DistrictId = districtSettingsModel.DistrictId);
            var test = await PostAsync("SalesMen/UpdateSalesManDistrictAndResponsability", districtSettingsModel.SalesManDetailsModel);

            return(RedirectToAction("Index", "Districts"));
        }
        public async Task <ActionResult> Settings(int districtId)
        {
            var salesManDetailsModel = await GetAsync <List <SalesManDetailsModel> >($"SalesMen/GetSalesMenDetails?districtId={districtId}");

            var districtSettingModel = new DistrictSettingsModel
            {
                DistrictId           = districtId,
                SalesManDetailsModel = salesManDetailsModel
            };

            return(View(viewName: "Settings", model: districtSettingModel));
        }