private void eMerchant2Name_TextChanged(object sender, EventArgs e) { if (eMerchant2Name.Text == "") { merchant2Id = null; eMerchant2Id.Text = ""; AppConfig.WriteSettingString("MerchantName2", ""); return; } merchant2Id = AppleVasConfig.ComputeId(eMerchant2Name.Text); Logger.Trace("MerchantId#2={0}", BinConvert.ToHex(merchant2Id)); eMerchant2Id.Text = BinConvert.ToHex_nice(merchant2Id, ":", "", 0); AppConfig.WriteSettingString("MerchantName2", eMerchant2Name.Text); }