Question

Hello I have a Class Called EmpowerCalendarCode:

It has the following fields CalendarCode, CalendarName, EffectiveStartDate, EmpowerTaxType, LongAgencyCode, TaxDepositFrequencyBaseTypeID.

I want to filter this list based on LongAgenyCode and EmpowerTaxType. So lets say:

public IList<EmpowerCalendarCode> GetEmpowerCalendarCodes(string longAgencyCode, string EmpowerTaxType)
{

     //todo:

}

If I get more than one EmpowerCalendarCode for same longAgencyCode, EmpowerTaxType which has the same TaxDepositFrequencyBaseTypeID , then I should pick the one which has the most recent EffectiveStartDate. How ould be able to write a LINQ query. I am okay even if we have to do two three queries to get the result.

Any Ideas and suggestions are appreciated!

Answer 1

Try this:

ctx.EmpowerCalendarCodes
.Where(a=>a.LongAgencyCode == longAgencyCode && a.EmpowerTaxType == EmpowerTaxType)
.OrderByDescending(a=>a.EffectiveStartDate)
.FirstOrDefault();