c# - Why does this return zero results? -

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i have list<list<string>> , when try search list<string> returns no results.

any ideas?

thanks

        list<list<string>> test = new list<list<string>>();          list<string> ff = new list<string>();         ff.add("1");         ff.add("abc 1");         test.add(ff);          ff = new list<string>();         ff.add("2");         ff.add("abc 2");          test.add(ff);          var result = test.where(x=>x.contains("abc"));          //result.count(); 0

neither of lists contains element "abc".

if want find lists have element contains "abc" substring can this:

var result = test.where(x => x.any(y => y.contains("abc")));

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