private IQueryable <dynamic> Find(int?IdServico, string dsServico)
{
var servicoDAO = new ServicoDAO();
var list = servicoDAO.SelectServico(IdServico, dsServico);
var select = list.Select(u => new
{
IdServico = u.IdServico,
dsServico = u.dsServico,
vlServico = u.vlServico
}).OrderBy(u => u.dsServico).ToList();
return(select.AsQueryable());
}