Case insensitive Contains in LINQ without making ToLower or ToUpper

Asked Feb 13 '18 at 14:47

Active Feb 13 '18 at 14:47

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I'm trying to get the customers which Company contains currentSearchViewValue.I want the LINQ to be case insensitive. I write the following:

string currentSearchViewValue = searchView.Query;
var currentCustomersSearched = customers.Where(x => x.Company.Contains(currentSearchViewValue, StringComparer.InvariantCultureIgnoreCase)).ToList();

When I build it says that Contains has no overloads that take 2 arguments. I've seen a lot of examples on internet and they are very long or don't work. Is there a way to do what I want in one line?

asked Feb 13 '18 at 14:47

Profile3ForStack

1

What is `x.Company`? – Patrick Hofman Feb 13 '18 at 14:48
Patrick Hofman a string – Profile3ForStack Feb 13 '18 at 14:49
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Try `x.Company.IndexOf(currentSearchViewValue, StringComparison.OrdinalIgnoreCase) >= 0` if `x.Company` is a `string` – Dmitry Bychenko Feb 13 '18 at 14:49
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LINQ to Objects, Linq to SQL, Entity Framework? – Stephen Kennedy Feb 13 '18 at 14:51
Try using IndexOf as mentioned in Dmitry's comment. There's no overload of string.Contains() that's case insensitive – yiabiten Feb 13 '18 at 14:51
Stephen Kennedy LINQ to Objects I believe. – Profile3ForStack Feb 13 '18 at 14:53
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You can try: `x.Company.ToLower().Contains(currentSearchViewValue.ToLower())).ToList()`; – Slaven Tojić Feb 13 '18 at 14:54

Case insensitive Contains in LINQ without making ToLower or ToUpper

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