C#•4mo ago

reading files from a directory

using System.IO;

namespace Program
{
    class program
    {
        public static void FileLoader()
        {
            string[] filePaths = Directory.GetFiles(@"C:\Users\joesm\Source\Repos\441101-2324-digital-portfolio-jsd6666\Summative 4\", "*.mark", SearchOption.TopDirectoryOnly);
            for (int i = 0; i < filePaths.Length; i++)
            {
                Console.WriteLine($"{i + 1}. {filePaths[i]}");
            }
            int fileSelect = int.Parse(Console.ReadLine());
        }
        public static void Main()
        {
            Console.WriteLine("Please select a file to load.");
            FileLoader();
        }
    }
}

using System.IO;

namespace Program
{
    class program
    {
        public static void FileLoader()
        {
            string[] filePaths = Directory.GetFiles(@"C:\Users\joesm\Source\Repos\441101-2324-digital-portfolio-jsd6666\Summative 4\", "*.mark", SearchOption.TopDirectoryOnly);
            for (int i = 0; i < filePaths.Length; i++)
            {
                Console.WriteLine($"{i + 1}. {filePaths[i]}");
            }
            int fileSelect = int.Parse(Console.ReadLine());
        }
        public static void Main()
        {
            Console.WriteLine("Please select a file to load.");
            FileLoader();
        }
    }
}

its showing me the file names with the directory included, i just want it to display the file name on each line without the directory??

12 Replies

Angius•4mo ago

Split the path by \ and get just the last segment That'll be the easiest way

Jimmacle•4mo ago

https://learn.microsoft.com/en-us/dotnet/api/system.io.path.getfilename?view=net-8.0 will get just the file name

MODiX•4mo ago

Angius

REPL Result: Success

var path = @"C:\Foo\Bar\Baz\My Cool Files\File.png";
var segments = path.Split('\\');
segments[^1]

var path = @"C:\Foo\Bar\Baz\My Cool Files\File.png";
var segments = path.Split('\\');
segments[^1]

Result: string

File.png

File.png

Compile: 387.446ms | Execution: 31.870ms | React with ❌ to remove this embed.

Jimmacle•4mo ago

no need to implement the splitting yourself

mtreit•4mo ago

Use DirectoryInfo and FileInfo types instead for this kind of thing.

var directory = new DirectoryInfo(@"c:\temp");
var files = directory.GetFiles();
foreach (var file in files)
{
    Console.WriteLine(file.Name);
}

var directory = new DirectoryInfo(@"c:\temp");
var files = directory.GetFiles();
foreach (var file in files)
{
    Console.WriteLine(file.Name);
}

zzz•4mo ago

i understand the use for 1 file but i dont understand how i can use iterations to get all file name s in a directory

Angius•4mo ago

You get all the file paths and, in a loop, extract the file names from them

mtreit•4mo ago

The code I showed does exactly that.

zzz•4mo ago

can you show me bro i dont want to just copy paste this code i dont understand ive just been staring at this shit for an hour trying not to punch a wall

Jimmacle•4mo ago

so you already have a loop with the absolute path to the file in filePaths[i] pick either Path.GetFileName or manually splitting and use that to get just the name or rewrite the whole thing based on mtreit's example

zzz•4mo ago

        public static void FileSelecter()
        {
            string rootPath = @"C:\Users\joesm\Source\Repos\441101-2324-digital-portfolio-jsd6666\Summative 4";
            var files = Directory.GetFiles(rootPath, "*.mark", SearchOption.TopDirectoryOnly);
            int count = 1;
            foreach (string file in files)
            {
                Console.WriteLine($"{count}. {Path.GetFileName(file)}");
                count = count + 1;
            }
            int fileSelect = int.Parse(Console.ReadLine());
            FileLoader();
        }

        public static void FileSelecter()
        {
            string rootPath = @"C:\Users\joesm\Source\Repos\441101-2324-digital-portfolio-jsd6666\Summative 4";
            var files = Directory.GetFiles(rootPath, "*.mark", SearchOption.TopDirectoryOnly);
            int count = 1;
            foreach (string file in files)
            {
                Console.WriteLine($"{count}. {Path.GetFileName(file)}");
                count = count + 1;
            }
            int fileSelect = int.Parse(Console.ReadLine());
            FileLoader();
        }

so i got it to work but it doesnt work like before as i have no array of file names which is what i need to access the file selected

Angius•4mo ago

files is the array that stores full file paths If you want to have a collection of just the file names, you can also use the loop for that Create a new List<string> that would store the names alone And, in the loop, for each path you have, add just the filename to that list Alternatively, you can use LINQ method .Select()

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reading files from a directory