C# Iterate Through Files Help
I currently have code to iterate through files on my computer, although I am trying to hook up the Button.Click event to execute this, how would I do this? And where would the output go?
Code below:
using System;
us开发者_JAVA百科ing System.IO;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
}
}
}
public class FileSystemList : IEnumerable<string>
{
DirectoryInfo rootDirectory;
public FileSystemList(string root)
{
rootDirectory = new DirectoryInfo(root);
}
public IEnumerator<string> GetEnumerator()
{
return ProcessDirectory(rootDirectory).GetEnumerator();
}
public IEnumerable<string> ProcessDirectory(DirectoryInfo dir)
{
yield return dir.FullName;
foreach (FileInfo file in dir.EnumerateFiles())
yield return file.FullName;
foreach (DirectoryInfo subdir in dir.EnumerateDirectories())
foreach (string result in ProcessDirectory(subdir))
yield return result;
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
}
If you have .NET 4.0, you can save yourself a lot of trouble by using Directory.EnumerateFiles.
You need to instantiate a FileSystemList
object in your button click event handler, call the methods you need on it (a foreach
loop seems likely).
As for the results - put the output where you want it. It goes where you, as a programmer, want it to go.
var list = new FileSystemList(pathIWantToList);
foreach(var item in list)
{
// do something
}
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