void Test2() { Users user = new Users(); UserRoles roles = new UserRoles() { RoleName = "role1" }; OQL q2 = new OQL(user); q2.InnerJoin(roles).On(user.RoleID, roles.ID); OQLCompare cmp = new OQLCompare(q2); OQLCompare cmpResult = ( cmp.Property(user.UserName) == "ABC" & cmp.Comparer(user.Password, "=", "111") & cmp.EqualValue(roles.RoleName) ) | ( (cmp.Comparer(user.UserName, "=", "CDE") & cmp.Property(user.Password) == "222" & cmp.Comparer(roles.RoleName, "like", "%Role2") ) | (cmp.Property(user.LastLoginTime) > DateTime.Now.AddDays(-1)) ) ; q2.Select().Where(cmpResult); Console.WriteLine("OQL by OQLCompare Test:\r\n{0}", q2); Console.WriteLine(q2.PrintParameterInfo()); }