Question

i needed to filter out the whole computer and find only .sto files. I want theses files displayed in a listbox. I am needing them displayed like this: “text.sto”. I am using Visual C# Express. How do i do that?

Answer 1

Make sure you have this using directive at the top of your code file:

using System.IO;

Get the directories with this method:

string[] dirs = Directory.GetFiles(@"c:\", "*.sto", SearchOption.AllDirectories);

It takes a second parameter that allows you to filter the results. More information on the method can be found here: http://msdn.microsoft.com/en-us/library/ms143316.aspx

Incase you do not want to use the built in .Net function for this (because it can throw access errors and provide no results), here is a answer to the question that shows doing it a different way: https://stackoverflow.com/a/929418/184746

Referencing from the aforementioned article, here is a method that will catch and wont give you errors with filtering added for *.sto:

public static IEnumerable<string> GetFiles(string path)
{
    Queue<string> queue = new Queue<string>();
    queue.Enqueue(path);
    while (queue.Count > 0)
    {
        path = queue.Dequeue();
        try
        {
            foreach (string subDir in Directory.GetDirectories(path))
            {
                queue.Enqueue(subDir);
            }
        }
        catch (Exception ex)
        {
            Console.Error.WriteLine(ex);
        }
        string[] files = null;
        try
        {
            files = (from f in Directory.GetFiles(path)
                     where f.EndsWith(".sto")
                     select f).ToArray();
        }
        catch (Exception ex)
        {
            Console.Error.WriteLine(ex);
        }
        if (files != null)
        {
            foreach (string t in files)
            {
                yield return t;
            }
        }
    }
}

You can use it like this:

string[] dirs = GetFiles(@"c:\").ToArray();

After that, create a listbox in the designer, and iterate through and add the items

foreach(var f in dirs)
{
    listBox1.Items.Add(String.Format("\"{0}\"", f));
}

Out of curiosity, what was your search parameter when researching this? Because a simple google search reveals all you need: "get list of files C#"https://www.google.ca/search?sourceid=chrome&ie=UTF-8&q=get+list+of+files+C%23