public void BtnHoadon_Click(object sender, EventArgs e)
{
//
frmMain frmMain = (frmMain)frmMain.ActiveForm;
frmMain.panelBangDieuKhien.Controls.Clear();
frmMain.panelNhiepvu.Controls.Clear();
frmMain.panelMain.Controls.Clear();
frmMain.panelKetquaTimKiem.Controls.Clear();
frmMain.panelChucnang.Controls.Clear();
//
frmMenuHoaDon formMenuHoaDon = new frmMenuHoaDon()
{
TopLevel = false,
AutoScroll = false,
FormBorderStyle = FormBorderStyle.None,
Dock = DockStyle.Fill
};
frmMain.panelBangDieuKhien.Controls.Add(formMenuHoaDon);
frmMain.lbTieude.Text = btnHoadon.Text;
frmMain.ptbTieude.Image = btnHoadon.Image;
frmMain.lbThongbao.Visible = true;
formMenuHoaDon.Show();
formMenuHoaDon.BtnHDN_Click(sender, e);
}
private void hóaĐơnBánToolStripMenuItem_Click(object sender, EventArgs e)
{
frmMenuHoaDon frm = new frmMenuHoaDon();
frm.btnHDB_Click(sender, e);
}