Regular Expression for a Max & Min Value on a double

Question

I have an MVC3 C#.NET web app. I have two properties that are doubles and can have the (value >= 0) and (value <=2). I would like to use a regular expression to limit the values for thes two fields. Ideas?

Answer 1

I really don't think regex is a good idea here, but if you want to know …

Let's break it down to what you need to match: 0(.XXXX), 1(.XXX), and 2(.0)

var regex = new Regex(@"0*([01](\.[0-9]*)?|2(\.0*)?)");