private void tsmiGoodsType2_Click(object sender, EventArgs e)
{
GoodsType2Info goods2 = GoodsType2Info.CreateForm();
goods2.MdiParent = this;
goods2.Show();
}
public static GoodsType2Info CreateForm()
{
if (_single == null)
{
_single = new GoodsType2Info();
}
else
{
_single.Activate();
}
return(_single);
}
private void this_FormClosed(object sender, FormClosedEventArgs e)
{
_single = null;
}