public void excluirCstIcmsB()
 {
     try
     {
         using (ServicoCadastrosBaseClient serv = new ServicoCadastrosBaseClient())
         {
             serv.deleteCstIcmsB(csticmsbSelected);
             csticmsbSelected = null;
         }
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }