CODEWITHSUNDEEP
c#arraystrim
jShoop
jShoop

Reputation: 411

Trimming every line in a text file then saving the result to an array

I need to read a local text file which will have a file name on every line. Every file name needs to be trimmed of it's extension. When I get to the part where I need to save the result of the trimming to another array I'm having some trouble.

So far I have: 

string path = @"C:\Users\path\file.txt";

      string[] readText = File.ReadAllLines(path);
      foreach (string s in readText)
      {
          string result = Path.GetFileNameWithoutExtension(s);

          //here I can print the result to the screen 
          //but I don't know how to save to another array for further manipulation    

      }

If you need any further clarification I will do my best to be more clear. Thanks in advance.

Upvotes: 2

Views: 416

Answers (3)

Chris
Chris

Reputation: 5514

Use a for loop instead of foreach:

string path = @"C:\Users\path\file.txt";
string[] readText = File.ReadAllLines(path);
for( int i = 0; i < readText.Length; i++ )
    readText[i] = Path.GetFileNameWithoutExtension( readText[i] );

Upvotes: 3

merlin2011
merlin2011

Reputation: 75585

Allocate a new array of the same size as the original array, and then insert by indexing.

  string path = @"C:\Users\path\file.txt";

  string[] readText = File.ReadAllLines(path);
  string[] outputArray = new string[readText.Length];
  int index = 0;
  foreach (string s in readText)
  {
      outputArray[index++] = Path.GetFileNameWithoutExtension(s);
  }

Upvotes: 0

Cameron
Cameron

Reputation: 98826

You can also do this with Linq:

var path = @"C:\Users\path\file.txt";
var trimmed =
    File.ReadAllLines(path)
        .Select(Path.GetFileNameWithoutExtension)
        .ToArray();

Upvotes: 4

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