private void btnWInfo_Click(object sender, EventArgs e) { lbWarrant.Items.Clear(); PI30002 p30002 = quoteCom.GetWarrantInfo(txtWid.Text); if (p30002 == null) { lbWarrant.Items.Add("查無資料,可能未連線/未下載/無此商品!!"); return; } lbWarrant.Items.Add("權證:[" + txtWid.Text + "]"); lbWarrant.Items.Add(Gen30002Msg(p30002)); }