How to know if IEnumerable is empty

Question

How to I know if the Item is null(empty)?

xmlDoc = XDocument.Load("file.xml");
IEnumerable<XElement> item =
from el in xmlDoc.Descendants("Item")
      where (string)el.Attribute("Name") == "Google"
      select el;

something instead of if(item==null )

Perhaps `item.Any()` is what you want. Items might be a better name. — Johan Larsson, Sep 04 '13 at 06:43
Why not `item==null` not sure how else will you know if it is null or not — V4Vendetta, Sep 04 '13 at 06:44
@V4Vendetta because it is not null. it is an empty object, but not null. — user990635, Sep 04 '13 at 06:45
@user990635 Ok so probably you could compare it with Enumerable [Empty](http://msdn.microsoft.com/en-us/library/bb341042%28v=vs.90%29.aspx) — V4Vendetta, Sep 04 '13 at 06:50

score 2 · Accepted Answer · edited May 23 '17 at 12:05

2

you can use item.Any() to check for item exist

You can check Count as well but I prefer to have Any with IEnumerable<T>

check this out Which method performs better: .Any() vs .Count() > 0?

edited May 23 '17 at 12:05

Community

1
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answered Sep 04 '13 at 06:43

Damith

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How to know if IEnumerable is empty

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