public int sta_DelUserSMS(List <string> lblOutputInfo, int txtSMSID, long cbUserID) { if (GetConnectState() == false) { lblOutputInfo.Add("*Please connect first!"); return(-1024); } int idwErrorCode = 0; int iSMSID = txtSMSID; string sEnrollNumber = cbUserID.ToString(); axCZKEM1.EnableDevice(iMachineNumber, false); if (axCZKEM1.SSR_DeleteUserSMS(iMachineNumber, sEnrollNumber, iSMSID)) { axCZKEM1.RefreshData(iMachineNumber);//After you have set user short message,you should refresh the data of the device lblOutputInfo.Add("Successfully delete user SMS! "); } else { axCZKEM1.GetLastError(ref idwErrorCode); lblOutputInfo.Add("*Operation failed,ErrorCode=" + idwErrorCode.ToString()); } axCZKEM1.EnableDevice(iMachineNumber, true); return(idwErrorCode != 0 ? idwErrorCode : 1); }