public static async Task <List <RolloModel> > GetRollosXidContenedor_ancho(int idcontenedor) { HttpClient httpClient = new HttpClient(); var uri = new UrlMain(); string url = string.Concat(uri.UrlM, "rollos/ancho/?", "idcontenedor=", idcontenedor.ToString()); var response = await httpClient.GetAsync(url).ConfigureAwait(false); if (response.StatusCode == System.Net.HttpStatusCode.OK) { var json = await response.Content.ReadAsStringAsync().ConfigureAwait(false); var rollos = RolloModel.FromJson(json); return(rollos); } return(null); }