After grouping by, can I refer to the elements of the original IEnumerable in a LINQ query?
- by michielvoo
Example:
from OriginalObject in ListOfOriginalObjects
group new CustomObject {
X = OriginalObject.A,
Y = OriginalObject.B
} by OriginalObject.Z into grouping
select new GroupOfCustomObjects {
Z = grouping.Key,
C = OriginalObject.C,
group = grouping
}
In the select part of the query, I'd like to add a property (OriginalObject.C) to the type GroupOfCustomObjects. But it seems that OriginalObject is out of scope in that part of the query. I can sort of understand why, since I am not grouping on that property and I am also not making that property part of CustomObject that I'm grouping.
One workaround is to add a property C to CustomObject and the in the GroupOfCustomObjects read the value of the first CustomObject in the grouping. My issue with that is that I'm adding a property to an object that doesn't need it (CustomObject), just to be able to add it to the GroupOfCustomObjects.
I hope I have explained this properly!
Is there a way to refer to the OriginalObject that the query starts with?
Thanks!
