private void tabPage2_Enter(object sender, EventArgs e)
        {
            sisDBADM obj = new sisDBADM();

            cbEditUF.DataSource = obj.listaUF();
            dgEdit.DataSource   = obj.ListaGrid();
        }
        private void tabPage3_Enter(object sender, EventArgs e)
        {
            sisDBADM obj = new sisDBADM();

            dgExcluir.DataSource = obj.ListaGrid();
        }