private void lịchSửHóaĐơnToolStripMenuItem_Click(object sender, EventArgs e) { fBillHistory f = new fBillHistory(); this.Hide(); f.ShowDialog(); this.Show(); }
private void lBillHistory_Click(object sender, EventArgs e) { fBillHistory f = new fBillHistory(); this.Hide(); f.ShowDialog(); this.Show(); }