public List <MachinesInfo> GetMachines(string NWIP, string WWIP, string JQRT, string GLY, string ZG, PagerInfo info) { if (NWIP != null && SqlInjection.GetString(NWIP)) { return(null); } if (WWIP != null && SqlInjection.GetString(WWIP)) { return(null); } if (JQRT != null && SqlInjection.GetString(JQRT)) { return(null); } if (GLY != null && SqlInjection.GetString(GLY)) { return(null); } if (ZG != null && SqlInjection.GetString(ZG)) { return(null); } if (machinesDal == null) { machinesDal = baseDal as IMachines; } return(machinesDal.GetMachines(NWIP, WWIP, JQRT, GLY, ZG, info)); }