public List <MateriaContrato_ListarResult> MateriaContrato_Listar()
 {
     ////using (dmIntranetDataContext dci = new dmIntranetDataContext(ConfigurationManager.ConnectionStrings["genesys"].ConnectionString))
     using (dmIntranetDataContext dci = new dmIntranetDataContext(GS.configuration.Init.GetValue(Constant.sistema, Constant.key, "genesys")))
     {
         try
         {
             return(dci.MateriaContrato_Listar().ToList());
         }
         catch (Exception ex)
         {
             dci.Excepcion_Registrar(ex.Message, ex.TargetSite.Name);
             dci.SubmitChanges();
             throw new ArgumentException("No se pudo consultar la Materia de contrato de la base de datos de GrpSilvestre");
         }
     }
 }