Regex Class - Assembly Reference Missing?

Question

I'm defining a new class. Two issues:

Match m = Regex.Match(text, pattern, RegexOptions.IgnoreCase, TimeSpan.FromSeconds(1));

Gives this error: "No overload for method 'Match' takes 4 arguments". But the MSDN defines this with 4 args.

catch (RegexMatchTimeoutException)

Gives this error: "The type or namespace name 'RegexMatchTimeoutException' could not be found (are you missing a using directive or an assembly reference?)"

My using directives:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

I'm running VS2008Express with .NET4.5

VS2008 doesn't support .NET 4.5. It supports only up to .NET 3.5. And `Match` with timeout argument (4th) was introduced only in .NET 4.5. — Ulugbek Umirov, May 08 '14 at 05:39

score 2 · Accepted Answer · edited May 23 '17 at 11:57

2

The overload of Match method which takes 4 arguments was only introduced in .NET 4.5. The problem is, you can not use Visual Studio 2008 to develop .NET 4 and later apps. See ScottGu's Blog:

There isn't any way to target .NET 4 from VS08 and use new features. Having said that, .NET4 is upwards comaptible with .NET 3.5 - so applications you build targeting .NET 3.5 with VS08 should work fine on top of .NET 4.

Also, check out this question.

edited May 23 '17 at 11:57

Community

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answered May 08 '14 at 05:42

Dmitrii Erokhin

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So it looks like I need to go to VS2012 to target .NET 4.5. – Tim Bostwick May 08 '14 at 05:51
That's right. [MSDN discussion](http://social.msdn.microsoft.com/Forums/vstudio/en-US/8ab8782d-36f5-4b7a-a264-c68f2dd564f9/targeting-net-45-with-visual-studio-2010) – Dmitrii Erokhin May 08 '14 at 05:57

Regex Class - Assembly Reference Missing?

1 Answers1