Grouping with LINQ
How can I use LINQ
to achieve the following?
I have some C # object (I am writing these as JSON
just for simplicity)
{ Name: A, Domain: a, SubDomain: 1}
{ Name: B, Domain: a, SubDomain: 2}
{ Name: C, Domain: b, SubDomain: 1}
{ Name: D, Domain: b, SubDomain: 2}
{ Name: E, Domain: c, SubDomain: 1}
I want to collect them like:
{ Domain: a ,{{Name: A, SubDomain: 1}, {Name: B, SubDomain: 2}}
Domain: b ,{{Name: C, SubDomain: 1}, {Name: D, SubDomain: 2}}
Domain: c ,{{Name: E, SubDomain: 1}}
+3
source to share
1 answer
Do you just want to group by Domain
?
var list = GetListFromFoo();
var groupedList = list.GroupBy(x => x.Domain);
It was done with this method LINQ
:
public static IEnumerable<IGrouping<TKey, TSource>> GroupBy<TSource, TKey>(
this IEnumerable<TSource> source, Func<TSource, TKey> keySelector)
If I understand your comment correctly, this is what you are looking for:
var groupedList = list.GroupBy(x => x.Domain, x => new
{
x.Name,
x.SubDomain
});
+8
source to share