CODEWITHSUNDEEP
c#.netsystem.io.directory
Ayo Adesina
Ayo Adesina

Reputation: 2395

Navigating Directories using Path.Combine

I am trying to go up a few directories and then go in to the input folder...

I have tried this

var path = Path.Combine(Directory.GetCurrentDirectory(), @"..\\..\\..\\Input\\" + filename);

but the value of path ends up being..

C:\\Users\user1\\Desktop\\ToSend\\test\\reverser\\Reverser\\bin\\Debug\\..\\\\..\\\\..\\\\Input\\\\limerick.txt

Any ideas?

Upvotes: 2

Views: 3633

Answers (5)

ths
ths

Reputation: 2942

To expand on lamloumi's answer and cleanup the code: 

var path = Path.GetFullPath(Path.Combine(Directory.GetCurrentDirectory(), @"..\..\..\Input", filename));

should produce the absolute path to your file.

Upvotes: 1

Adam Bilinski
Adam Bilinski

Reputation: 1198

Assuming you know how many levels you want to remove from your path:

public string DirectoryGOUp(string path, int levelCount) {
    if(string.IsNullOrEmpty(path) || levelCount < 1)
        return path;

    string upperLevel = System.IO.Path.GetDirectoryName(path);

    if(--levelCount > 0)
        return DirectoryGOUp(upperLevel, levelCount);

    return upperLevel;
}

And then call it:

var newPath = DirectoryGOUp(Directory.GetCurrentDirectory(),3); newPath = Path.Combine(newPath, @"Input\"+filename);

Upvotes: 0

Davut &#214;zcan
Davut &#214;zcan

Reputation: 109

You can use the DirectoryInfo.Parent Property.

Upvotes: 0

Lamloumi Afif
Lamloumi Afif

Reputation: 9081

You need to get the absolute not a relative path . So you must use GetFullPath() instead of Combine().

Check this

Upvotes: 2

andreask
andreask

Reputation: 4298

First of all, when using @ with Strings there is no need to escape \ characters, so by just using single \ slashes you can avoid the double-escaped slashes in the result.

Concerning the path question: It depends on what you want to do. If the result string is used to do some file operations using System.IO.File.* or to write/read from a file using StreamReader/StreamWriter, the operation itself will take care of walking up the directories when detecting \..\, so no need to worry!

Upvotes: 0

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