c# - Sorting lambda expression for this -

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• c# list<> sort x y 6 answers

i have list of items want sort can't seems lambda expression right. can leads me lambda expression? thanks

unsorted list item:

number: 2, date: 21/10/2010 11:22:55 number: 1, date: 21/10/2010 11:22:55 number: 2, date: 20/10/2010 12:10:00 number: 1, date: 20/10/2010 12:10:00 

sorted list item:

number: 1, date: 21/10/2010 11:22:55 number: 1, date: 20/10/2010 12:10:00 number: 2, date: 21/10/2010 11:22:55 number: 2, date: 20/10/2010 12:10:00  itemlist.sort((x, y) => ...); 

you can use linq's orderby , thenbydescending extension methods:

using system.linq; ...  var sorteditems =      itemlist.orderby(x => x.number)             .thenbydescending(x => x.date); 

this create new object. if want assign original itemlist, this:

using system.linq; ...  itemlist = itemlist.orderby(x => x.number)                    .thenbydescending(x => x.date)                    .tolist();