Split a list by distinct date

c#, linq

Solution

var q  = from date in allDates 
         group date by date.Year into datesByYear
         select datesByYear.ToList();
q.ToList(); //returns List<List<DateTime>>

Problem

Another easy one hopefully. Let's say I have a collection like this: ``` List<DateTime> allDates; ``` I want to turn that into ``` List<List<DateTime>> dividedDates; ``` where each List in 'dividedDates' contains all of the dates in 'allDates' that belong to a distinct year. Is there a bit of LINQ trickery that my tired mind can't pick out right now? Solution The Accepted Answer is correct. Thanks, I don't think I was aware of the 'into' bit of GroupBy and I was trying to use the .GroupBy() sort of methods rather than the SQL like syntax. And thanks for confirming the ToList() amendment and including it in the Accepted Answer :-)

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