private void toolStripButton2_Click(object sender, EventArgs e) { if (op2 == null || op2.IsDisposed) op2 = new goods.MainGoods(); op2.MdiParent = this; op2.Show(); }
private void toolStripButton2_Click(object sender, EventArgs e) { if (op2 == null || op2.IsDisposed) { op2 = new goods.MainGoods(); } op2.MdiParent = this; op2.Show(); }