LINQ - Convert to LAMBDA Expression

Question

foreach (int i in temp)
    data.Add(i);

where temp is a List and data is an ObservableCollection

why do you need to convert it to lambda? are there any particular reasons? — Massimiliano Peluso, Dec 07 '11 at 12:09
Just an FYI a lambda isn't like an acronym or anything. It's not even a proper noun, it's just "lambda" — J. Holmes, Dec 07 '11 at 12:09

score 1 · Answer 1 · answered Dec 07 '11 at 12:12

1

Why don't you just do

var data = new ObservableCollection(temp);

answered Dec 07 '11 at 12:12

Abdul Munim

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score 0 · Answer 2 · answered Dec 07 '11 at 12:07

0

temp.ForEach(x => data.Add(x));

answered Dec 07 '11 at 12:07

Roy Dictus

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score 0 · Answer 3 · answered Dec 07 '11 at 12:08

0

// if data is empty just pass temp in the constructor
ObservableCollection<int> data = new ObservableCollection<int>(temp);

// if data already has values you can do this using List.ForEach method
// but this would not be a LINQ since LINQ not able to modify data sources itself
temp.ForEach(i => data.Add(i));

answered Dec 07 '11 at 12:08

sll

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any other possibilities other than this?i dont want to use foreach as it has the same behaviour of "foreach" statement – hari venkatesh Dec 07 '11 at 12:09
What exacly you want to achieve? I'm a bit confused by a lambda requirement, you need to pass this as delegate to some method or just make a code block shorter? If latter - just use `foreach` loop as in your question – sll Dec 07 '11 at 12:11

score 0 · Answer 4 · answered Dec 07 '11 at 12:11

Not really anything wrong with what you got. ObservableCollection is a bit of a pain tho.

Here are some useful extension methods that add things like an 'AddRange' method for it.

http://zainshaikh.posterous.com/some-extension-methods-for-observablecollecti

LINQ - Convert to LAMBDA Expression

4 Answers4