public FrmListado()
{
InitializeComponent();
DgvListado.DataSource = null;
principals.Clear();
principals = service.Consultar();
DgvListado.DataSource = principals;
}
private void pictureBox2_Click(object sender, EventArgs e)
{
DgvListado.DataSource = null;
principals.Clear();
principals = service.Consultar();
DgvListado.DataSource = principals;
}
public FrmListado()
{
InitializeComponent();
var connectionString = ConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString;
service = new PrincipalService(connectionString);
DgvListado.DataSource = null;
principals.Clear();
principals = service.Consultar();
DgvListado.DataSource = principals;
}