public static bool VerifyMemberPackageAllowCertainClass(int nPackageID, string strClassCode) { TblClassInstance clsInstance = new TblClassInstance(); string cmdText = " Select Count (*) from tblPackageClass A " + " inner join tblMemberPackage B on A.strPackageCode = B.strPackageCode " + " Where B.nPackageID = @nPackageID and A.strClassCode = @strClassCode"; object obj = clsInstance.ExecuteScalar(cmdText, new string[] {"@nPackageID", "@strClassCode"}, new object[] {nPackageID, strClassCode}); if (obj != null) { Int32 r = (Int32) obj; if (r > 0) return true; else return false; } else return true; }