How can I check to see if a C# string array contains a value

Question

I have the following:

var a = new string[] {"a", "b", "c"};

How can I check this array to see if it contains "c"?

John Woo · Accepted Answer · 2012-10-14 14:32:25Z

4

Try this one,

bool x = a.Contains("c");

answered Oct 14, 2012 at 14:32

John Woo

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Comments

Rohit Vats · Accepted Answer · 2012-10-14 14:32:58Z

3

Use Contains extension method - a.Contains("c");

answered Oct 14, 2012 at 14:32

Rohit Vats

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Jeppe Stig Nielsen · Accepted Answer · 2012-10-14 15:04:34Z

1

If you don't want to use the extension method of System.Linq.Enumerable, or if you fear that's performing too bad, the "old" way is the ugly

Array.IndexOf(a, "c") != -1

Another ugly possibility is to use one of the explicit interface implementations, like

((IList<string>)a).Contains("c")

In some ways, arrays have an obsolete feeling to them.

answered Oct 14, 2012 at 15:04

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