using Controladora; namespace Vista { public partial class FrmFacturas : Form { public FrmFacturas() { InitializeComponent(); ActualizarGrilla(); } private void ActualizarGrilla() { dataGridView1.DataSource = null; dataGridView1.DataSource = ControladoraFacturas.Instance.Listar(); } private void BtnAdd_Click(object sender, EventArgs e) { var form = new FrmFactura(); form.ShowDialog(); ActualizarGrilla(); } private void dataGridView1_CellBorderStyleChanged(object sender, EventArgs e) { } } }