public Mainmenu()
{
InitializeComponent();
MessageBox.Show("يجب تسجيل الدخول اولا ", "ملحوظه", MessageBoxButtons.OK, MessageBoxIcon.Information);
if (frm == null)
{
frm = this;
}
expenes.Enabled = false;
ShortComing.Enabled = false;
USERES.Enabled = false;
personAMD.Enabled = false;
cOmpany.Enabled = false;
REvenue.Enabled = false;
logout.Enabled = false;
usersetting.Enabled = false;
}
static void frm_formclosed(object sender, FormClosedEventArgs e)
{
frm = null;
}