private void traCứuChuyếnBayToolStripMenuItem_Click(object sender, EventArgs e) { this.Hide(); TraCuu tc = new TraCuu(); tc.ShowDialog(); tc = null; this.Show(); }
private void button2_Click(object sender, EventArgs e) { this.Hide(); TraCuu tc = new TraCuu(); tc.ShowDialog(); tc = null; this.Show(); }