private void btnPhongBan_Click(object sender, EventArgs e)
{
Quanlyphongban frmpb = new Quanlyphongban();
frmpb.Show();
this.Hide();
}
private void pbToolStripMenuItem_Click(object sender, EventArgs e)
{
Quanlyphongban frmpb = new Quanlyphongban();
frmpb.TopLevel = false;
pnlMain.Controls.Add(frmpb);
frmpb.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
frmpb.Dock = DockStyle.Fill;
frmpb.Show();
}
