private void bIsoLock_Click(object sender, EventArgs e) { int addr = 0; int status; try { addr = int.Parse(tIsoAddr.Text); } catch (Exception) { lInfo.Items.Add("Please Input ByteAddr!"); return; } status = Api.IsoLock((byte)addr); if (status == 0) { lInfo.Items.Add("Lock success!"); } else { lInfo.Items.Add("Lock failed!"); } }