private void AtualizaGrid() { ClienteNegocios clienteNegocios = new ClienteNegocios(); ClienteCollection clienteCollection = clienteNegocios.ConsultaPorNome(txbPesquisa.Text); dataGridViewPrincipal.DataSource = null; dataGridViewPrincipal.DataSource = clienteCollection; dataGridViewPrincipal.Update(); dataGridViewPrincipal.Refresh(); }