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Answer 1

+7 A:

The GetFiles method allows you to specify a wildcard pattern but not really a regex. Another possibility is to simply loop through the files and validate their name against a regex.

IEnumerable<string> files = Directory
    .EnumerateFiles(@"c:\somePath")
    .Where(name => Regex.IsMatch(name, "SOME REGEX"));

Darin Dimitrov 2010-08-24 08:13:14

+1 Nice ... didn't know something like this even existed :)

Rashmi Pandit 2010-08-24 08:19:51

The `Directory.EnumerateFiles` was a great addition to .NET 4.0 as it returns `IEnumerable<string>` instead of `string[]` meaning that unless you start enumerating it won't block.

Darin Dimitrov 2010-08-24 08:21:42

btw, `Directory.EnumerateFiles` is a .NET 3.5 feature

abatishchev 2010-08-24 08:26:24

@abatishchev, no it isn't, checkout the doc: http://msdn.microsoft.com/en-us/library/dd383458.aspx

Darin Dimitrov 2010-08-24 08:28:03

Yeap, http://msdn.microsoft.com/en-us/library/dd383458%28VS.90%29.aspx :)

abatishchev 2010-08-24 08:32:47

@abatishchev: Read that document more closely. Specifically the Version Information part which says "Supported in: 4".

Tergiver 2010-08-24 16:30:13

@Tergiver, @Darin: Thanks!

abatishchev 2010-08-25 06:06:26

Answer 2

A:

Regex matching of filesystem is not supported you will have to iterate through each of the files in the directory and check them individually

Nissim 2010-08-24 08:13:43

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Regex to find a file in folder

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