Is there a LINQ way of doing something like a foreach and then calling a function?

Question

I have the following:

foreach (var objectiveDetail in add)
{
    _uow.ObjectiveDetails.Add(objectiveDetail);
}

Is there a way I could do this in LINQ.

Is there any particular reason or it's just because "I can"? To me it's perfectly valid and even more readable your current approach... — , Jan 22 '14 at 04:34

score 5 · Accepted Answer · answered Jan 22 '14 at 04:33

5

Or just:

_uow.ObjectiveDetails.AddRange(add);

answered Jan 22 '14 at 04:33

Simon Whitehead

+1 My personal favorite.. Assuming _uow.ObjectiveDetails is a type that supports `AddRange(IEnumerable)`. – Nico Jan 22 '14 at 04:34
If not.. LINQ's `Concat` is the same. – Simon Whitehead Jan 22 '14 at 04:36
If I could +2 this I would.. The add range uses the `Array.Copy` and 'Array.CopyTo' methods which do not enumerate the set if the added collection implements `ICollection`. Although marginal will execute quicker and cleaner. – Nico Jan 22 '14 at 04:39

score 1 · Answer 2 · edited May 23 '17 at 11:59

1

add.Foreach(o => _uow.ObjectiveDetails.Add(o));

Try the above

Here is another answer/question ToList().ForEach in Linq

edited May 23 '17 at 11:59

Community

answered Jan 22 '14 at 04:30

TGH

I think I recommend using your original approach though. It's more readable IMO – TGH Jan 22 '14 at 04:35

score 1 · Answer 3 · answered Jan 22 '14 at 04:30

1

You mean something like this?

add.ForEach( (objectiveDetail) => _uow.ObjectiveDetails.Add(objectiveDetail));

By the way this is not LINQ.This is just a method of generic List<T> class.

answered Jan 22 '14 at 04:30

Selman Genç

Thanks. I will accept your answer as I believe it was the first correct answer. – Jan 22 '14 at 04:33
1

This isn't strictly correct. Only `List` natively supports this method. You need to include a reference to the Interactive Framework (by the Reactive Framework guys) to get this on `IEnumerable`. – Enigmativity Jan 22 '14 at 04:35
1

@Enigmativity, I mention it just now :) – Selman Genç Jan 22 '14 at 04:36

score 0 · Answer 4 · answered Jan 22 '14 at 04:31

0

You could do this in a foreach if add is a List<T> by calling the method ForEach(Action<T> action)

Such as.

add.ForEach(item => _uow.ObjectiveDetails.Add(item));

answered Jan 22 '14 at 04:31

Nico

4 Answers4