private void cbTipo_SelectedIndexChanged(object sender, EventArgs e) { try { if (cbTipo.Text == "Mes") { dtfecha.Visible = false; cbMes.Visible = true; //Connections cx = new Connections(this); cx.Meses(); } else if (cbTipo.Text == "Dia") { dtfecha.Visible = true; cbMes.Visible = false; } } catch (Exception a) { MessageBox.Show(a.Message.ToString()); } }