Question

I write this query but the result from it is wrong

var query = from item in db.Advances
            where CurrentConfiguration.currentLanguage == GeneralDefinitions.arabicSymbol 
                  ? item.eUser.name.ToLower().Contains(strSearchKey)
                  : item.eUser.englishName.ToLower().Contains(strSearchKey)
            && !item.isPaid 
            && item.expectedPaymentMonth == dExpectedPayment.Month 
            && item.expectedPaymentYear == dExpectedPayment.Year
            && item.advanceTypeId == (int)enumAdvanceType.AtOnce
            select item;

The wrong is in

item.expectedPaymentMonth == dExpectedPayment.Month 
&& item.expectedPaymentYear == dExpectedPayment.Year

It is always true although item.expectedPaymentMonth != dExpectedPayment.Month
Is there any syntax error or something wrong in this query ?

Answer 1

Try this:

var query =
    from item in db.Advances
    where (CurrentConfiguration.currentLanguage
            == GeneralDefinitions.arabicSymbol
            ? item.eUser.name
            : item.eUser.englishName).ToLower().Contains(strSearchKey)
    where !item.isPaid
    where item.expectedPaymentMonth == dExpectedPayment.Month
    where item.expectedPaymentYear == dExpectedPayment.Year
    where item.advanceTypeId == (int)enumAdvanceType.AtOnce
    select item;

I suspect that the ternary operator is causing you grief.