private void quảnLýToolStripMenuItem_Click(object sender, EventArgs e) { this.Hide(); quanli.Show(); }
private void btnHome_Click(object sender, EventArgs e) { this.Hide(); f.Show(); }
private void quảnLýToolStripMenuItem_Click(object sender, EventArgs e) { this.Hide(); quanli.Show(); }
private void btnHome_Click(object sender, EventArgs e) { this.Hide(); f.Show(); }