How to convert FileInfo into FileInfo[]

Question

I have been working on a program that requires a different approach to finish a job using try and catch nested within another try/catch.

For this purpose I have had to create a set of files as strings and then converted them to FileInfo.

IEnumerable<string> paths = null;
foreach (String fil in paths)
    FileInfo h = new FileInfo(fil);

So That wasn't so difficult, I require FileInfo to be in the form of a FileInfo[] array to continue the program however.

System.IO.FileInfo[] files = null;

Simply put, what is the best method to convert one type to the other, either directly from the string of from the converted FileInfo into a FileInfo array (FileInfo[])?

A `FileInfo[]` array is precisely: `FileInfo[][]`. i.e. not what you want. — Cole Tobin, Dec 22 '12 at 23:10

score 4 · Answer 1 · answered Dec 22 '12 at 23:10

4

Yeah or create a single-item array:

FileInfo[] files = new FileInfo[] { info };

answered Dec 22 '12 at 23:10

Robin Kanters

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The method I am using is a sub method requiring the addition to anything already in the array – Adsy2010 Dec 23 '12 at 09:22

score 3 · Accepted Answer · answered Dec 22 '12 at 23:08

3

Why not directly?

paths.Select(p => new FileInfo(p)).ToArray();

answered Dec 22 '12 at 23:08

Tim Schmelter

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@Adsy2010: Note that you need at least .NET 3.5 for `using System.Linq`. – Tim Schmelter Dec 23 '12 at 10:01

score 2 · Answer 3 · answered Dec 22 '12 at 23:09

2

Use:

var result = paths.Select(p => new FileInfo(p)).ToArray();

answered Dec 22 '12 at 23:09

Kirill Polishchuk

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sa_ddam213 · Answer 4 · 2012-12-23T01:55:45.907

0

You could just use Linq select to create your FileInfo[]

 IEnumerable<string> paths = null; // assuming you are going to fill this with filenames
 FileInfo[] fileInfos = paths.Select(p => new FileInfo(p)).ToArray();

edited Dec 23 '12 at 01:55

answered Dec 22 '12 at 23:11

sa_ddam213

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How to convert FileInfo into FileInfo[]

4 Answers4