Use predicateBuilder with .Where method

Question

Currently, I'm trying to use a LINQ expression to query a SQL database. The linq query works fine in LinqPad, however, I'm having a hard time figuring out how to form a query that will work in Visual Studio.

Here is the query in LINQPad5

Group_Employees.Where(x => x.EffectiveDate <= DateTime.Now && x.EndDate >= DateTime.Now && x.GroupId == 132 || x.GroupId == 134)

This returns 85 records (the correct number). However, when I try to use the same conditions in my C# program, I get 86 records.

My code looks like this:

var predicate = PredicateBuilder.True<TimesheetLineItem>();

                if (startDate.HasValue)
                {
                    predicate = predicate.And(x => x.Date >= startDate);
                }

                if (weekendingdate.HasValue)
                {
                    predicate = predicate.And(x => x.Date <= weekendingdate);
                }

                else
                {
                    predicate = predicate.And(x => x.JobNumberCoding != null || x.JobNumberEquipmentGeneralLedgerDistribution != null || x.EquipmentCollection != null);
                }

                predicate = predicate.And(x => x.Timesheet.DivisionId == (int)Divisions.MPM);

                predicate = predicate.And(x => x.Timesheet.Employee.Group_Employee.Any(j => j.GroupId == 132 || j.GroupId == 134));

            predicate = predicate.And(x => x.Timesheet.Employee.Group_Employee.Any(k => k.EffectiveDate <= DateTime.Now && k.EndDate >= DateTime.Now));

The final predicate assignment using k.EffectiveDate, etc., does not have any effect on the result set (I'm still getting 86 records instead of the 85).

Answer 1

EDIT: figured it out! I had to incorporate parenthesis so the following works:

predicate = predicate.And(x => x.Timesheet.Employee.Group_Employee.Any(y => (y.GroupId == 134 || y.GroupId == 132) && y.EffectiveDate <= DateTime.Now && y.EndDate >= DateTime.Now));

Thank you for your help!