private void تسجيلالدخولToolStripMenuItem_Click(object sender, EventArgs e)
{
if (nwlogin == null)
{
nwlogin = new login();
nwlogin.MdiParent = this;
nwlogin.FormClosed += new FormClosedEventHandler(nwlogin_FormClosed);
nwlogin.Show();
}
}
private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
login cp = new login();
cp.Show();
}
void nwlogin_FormClosed(object sender, FormClosedEventArgs e)
{
nwlogin = null;
}