Case-insensitive string matching in LINQ Where

Question

I was working on something that required me to catch the first char of a string. and return if it starts with S or s.

The pseudocode I considered was:

var foodsWithS = Foods.Where(food => food.Name[0] == 'S' || food.Name[0] == "s").Select(i => i.Name);

Unfortunately, this fails. What would be the best way to do this? Currently I have two lambdas to check for each case of the letter.

^ In particular [the second answer](http://stackoverflow.com/a/444818/1324033) — Sayse, Mar 28 '16 at 17:41
Your pseudocode was close, but as @Jace's answer points out, `StartsWith` is the right way to do this (assuming you're using LINQ-to-Objects). — Nate Barbettini, Mar 28 '16 at 17:45
true . quite similar ... but good to see it in a LAMBDA expression — h4mme7, Mar 28 '16 at 17:45

score 4 · Answer 1 · answered Mar 28 '16 at 17:43

4

foods.Where(x => x.StartsWith("S", StringComparison.OrdinalIgnoreCase));

answered Mar 28 '16 at 17:43

Jace

score 2 · Answer 2 · edited Mar 28 '16 at 17:59

2

If you are using a collection of string objects, You can also use StartsWith;

food.StartsWith("s", StringComparison.OrdinalIgnoreCase);

edited Mar 28 '16 at 17:59

Jace

answered Mar 28 '16 at 17:44

kemiller2002

2 Answers2