private void FrmLoaiMonAn_FormClosing(object sender, FormClosingEventArgs e)
{
frmMonAn frm = new frmMonAn(_tenTK);
frm.MdiParent = this.MdiParent;
frm.Dock = DockStyle.Fill;
frm.Show();
}
// MDI frmMonAn
void MoFormMonAn()
{
Form frm = KiemTraFormTonTai(typeof(frmMonAn));
if (frm != null)
{
frm.Activate();
}
else
{
frmMonAn m_frmHoaDonThanhToan = new frmMonAn(_tenTK);
m_frmHoaDonThanhToan.MdiParent = this;
m_frmHoaDonThanhToan.Dock = DockStyle.Fill;
m_frmHoaDonThanhToan.Show();
}
}
private void frmMonAn_FormClosed(object sender, FormClosedEventArgs e)
{
_Instance = null;
}