c# - Checking multiple contains on one string

Question

So I have a conditional that currently looks like this...

if (input.Contains(",") || input.Contains("/") || input.Contains(@"") || input.Contains("."))

I need to add a few more characters that I want to check for and was wondering if there's a more condensed syntax to accomplish the same thing? Something similar to SQL's IN operator?

if ( input IN (",", "/", @"", ....etc )  )

Anybody know of any cool tricks to accomplish this without adding lots of code?

Answer 1

Consider using Regex (specify characters you want to check in brackets - remember that some of them must be escaped):

Regex.IsMatch(input, @"[,/]");

or

new[] {",", "/"}.Any(input.Contains)