private void kháchHàngToolStripMenuItem_Click(object sender, EventArgs e)
{
foreach (Form form in MainPanel.Controls)
{
form.WindowState = FormWindowState.Minimized;
}
KhachHang f = new KhachHang();
f.Show();
f.Left = 0;
f.Top = 0;
f.TopLevel = false;
MainPanel.Controls.Add(f);
}
private void mntsKhachHang_Click(object sender, EventArgs e)
{
KhachHang kh = new KhachHang();
kh.Show();
}