private void panel1_Click(object sender, EventArgs e) { this.Hide(); NhapHang frm = new NhapHang(); frm.ShowDialog(); //WHEN SHOWDIALOG() END frm.Dispose(); this.Show(); }
private void btnNhapHang_Click(object sender, EventArgs e) { if (fm == null || fm.Text == "") { fm = new NhapHang(); fm.Show(); } else if (CheckOpened(fm.Text)) { fm.Show(); fm.Focus(); } }