private void ByByWindows(object sender, FormClosedEventArgs e)
{
Form frm;
if (sender is Form)
{
frm = (Form)sender;
if (frm == frmLietKeTinhGia)
{
frmLietKeTinhGia = null;
}
}
}
private void mnuView_QuoteBrowser_Click(object sender, EventArgs e)
{
if (frmLietKeTinhGia == null)
{
frmLietKeTinhGia = new LietKeTinhGiaForm();
frmLietKeTinhGia.KieuSapXep = SapXepTinhGiaS.Khong;
frmLietKeTinhGia.FormClosed += new FormClosedEventHandler(ByByWindows);
frmLietKeTinhGia.MdiParent = this;
frmLietKeTinhGia.Show();
}
else
{
frmLietKeTinhGia.Focus();
}
}