Linq to object question

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Hello

I 'd like to modify my current query to include all the materials even if it doesn't satisfy the where condition. This is needed for a later joining.

C#

var qtreqd_ho4 = (from qt0 in ReqdMats
                  where (ERPConnect.ConversionUtils.SAPDate2NetDate(qt0.date) < DateTime.Now.AddMonths(4) && ERPConnect.ConversionUtils.SAPDate2NetDate(qt0.date) >= DateTime.Now.AddMonths(3))
                                group qt0 by new { qt0.ID } into g

                                 select new MatRequirements
                                 {
                                     ID = g.Key.ID,
                                     reqmennyiseg = g.Sum(qt0 => qt0.reqmennyiseg)
                                 }).ToList();

So I'd like to include all materials even with 0 qty. iS it going to be a g.Where().Sum()....

Posted 26-Feb-13 1:57am

gericooper

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LokoLuke 26-Feb-13 10:21am

Why don't you just take the where clause out if the query is not dependant on it??

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gericooper · Answer 1 · 2013-02-27T03:48:00

instead of the above this will do, later I realized...

C#

var qtreqdperho = (from qt in ReqdMats
                                  group qt by new { qt.ID } into g
                                  select new ReqdQTYPerMonth
                                  {
                                      Anyag = g.Key.anyagszam,
                                      Hó1Menny = g.Where(ho1 => ERPConnect.ConversionUtils.SAPDate2NetDate(ho1.datum) < DateTime.Now.AddMonths(1) && ERPConnect.ConversionUtils.SAPDate2NetDate(ho1.datum) >= DateTime.Now).Sum(qt1 => qt1.reqmennyiseg)

                                  }).ToList();

So Where().Sum() moved into query select part.