private void btn_saleslist_Click(object sender, EventArgs e)
{
//sl.Show();
if (su == null)
{
su = new sales_list();
su.FormClosed += delegate { su = null; };
su.RefreshDgv += new sales_list.DoEvent(setsu);
su.Show();
}
else
{
su.WindowState = FormWindowState.Normal;
su.Focus();
}
}
public void setsu()
{
su = null;
}
private void SalesList_Click(object sender, EventArgs e)
{
sales_list slist = new sales_list();
slist.Show();
}