Search in Item2 in List

Question

I've been struggling.
How do I write this:

/* initialization */ 
List<Tuple<string, string, string>> mytuples = new List<Tuple<string, string, string>>();

// pseudocode:
if(mytuples.Contains("hello") in Item2)
{
    Console.Write("Success");
}

Please read [faq] and [ask] before asking a question. – Soner Gönül Dec 16 '12 at 12:44 — Soner Gönül, Dec 16 '12 at 12:44

score 13 · Accepted Answer · edited Sep 24 '20 at 11:53

13

/* initialization */ 

List<Tuple<string, string, string>> mytuples = new List<Tuple<string, string, string>>();


bool containsHello = mytuples.Any(c=>c.Item2.Contains("hello"));

if(containsHello )
{
    Console.Write("Success");
}

edited Sep 24 '20 at 11:53

StayOnTarget

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answered Dec 16 '12 at 12:44

Saw

6,199
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53
104

Applies to `List<(sting A, string B, string C)>` ? – Kiquenet Nov 22 '22 at 07:48

score 4 · Answer 2 · edited Sep 24 '20 at 11:53

4

You can use linq to check it:

List<Tuple<string, string, string>> mytuples = new List<Tuple<string, string, string>>();

if(mytuples.Where(t=>t.Item2.Contains("hello")).Any())
    Console.Write("Success");

edited Sep 24 '20 at 11:53

StayOnTarget

11,743
10
52
81

answered Dec 16 '12 at 12:45

Kirill Bestemyanov

11,946
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My answer is faster :), yours will get all items those contains hello and then see if there is any items. mine will stop when it find some match. – Saw Dec 16 '12 at 12:49
5

This queries absolutely equivalent.They both stops at first matching – Kirill Bestemyanov Dec 16 '12 at 12:55
3

This is due to lazy evaluation. – Kirill Bestemyanov Dec 16 '12 at 20:23

Search in Item2 in List

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