I'm trying to use linq to remove items from a collection where one date is greater than another. I know I need to use DateTime.Compare()
but I'm a bit unsure how to go about it.
If this were allowed, my code would look like the following:
ciLibrary.RemoveAll(x => x.LastSyncToWebsite >= x.Modified);
Since this doesn't work with DATETIME
values how do I properly represent this statement?
DateTime
values can be compared using >=
. What you need is a Where
:
clLibrary.Where(x => !(x.LastSyncToWebsite >= x.Modified))
or equivalently:
clLibrary.Where(x => x.LastSyncToWebsite < x.Modified)
This generates a new IEnumerable, leaving clLibrary
unchanged. If clLibrary
is of type List<T>
, you can:
clLibrary = clLibrary.Where(x => x.LastSyncToWebsite < x.Modified).ToList();
If clLibrary
is of type T[]
, you can:
clLibrary = clLibrary.Where(x => x.LastSyncToWebsite < x.Modified).ToArray();
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