private void kupciToolStripMenuItem_Click(object sender, EventArgs e)
{
if (kupci == null)
{
kupci = new Kupci();
kupci.FormClosed += kup_FormClosed;
kupci.MdiParent = this;
kupci.Show();
kupci.WindowState = FormWindowState.Maximized;
}
else
{
kupci.Show();
kupci.WindowState = FormWindowState.Maximized;
}
}
void kup_FormClosed(object sender, FormClosedEventArgs e)
{
kupci = null;
//throw new NotImplementedException();
}