private void Pruebacorreo_Load(object sender, EventArgs e) { DataSet ds = asd.mostrarNotificados(); if (ds != null) { dataGridView1.DataSource = ds.Tables[0]; } for (int i = 0; i < dataGridView1.Rows.Count - 1; i++) { asd.consultarinfo(mar, int.Parse(dataGridView1.Rows[i].Cells[0].Value.ToString())); } }