问:文件夹遍历

Question

如果一个文件夹里包含有子文件夹 , 子文件夹里还有子文件夹...如何用C#统计所有子文件夹的个数并且遍历出所有的文件夹!?

Answer 1

遍历
http://www.cnblogs.com/qianqianfy/archive/2009/07/08/1518974.html至于个数，可以用个计数器

Answer 2

public   void   FindFile(string   dir)                    
  {         
  DirectoryInfo   Dir=new   DirectoryInfo(dir);   
  try   
  {   
  foreach(DirectoryInfo   d   in   Dir.GetDirectories())      
  {   
  FindFile(Dir+d.ToString()+"\\");   
  }   
 foreach(FileInfo   f   in   Dir.GetFiles("*.*"))              
  {   
   
  }   
  }   
  catch(Exception   e)   
  {   
  MessageBox.Show(e.Message);   
  }   
  }   
 
  
foreach (string dir in System.IO.Directory.GetDirectories("最上级文件夹全路径", "*.*", SearchOption.AllDirectories))
            {
                System.IO.DirectoryInfo di = new DirectoryInfo(dir);
                if (di.GetFiles().Length>0)
                    {//递归}
            }

Answer 3

  DirectoryInfo di = new DirectoryInfo(@"c:\MyDir");
        try 
        {
            // Determine whether the directory exists.
            if (di.Exists) 
            {
                // Indicate that the directory already exists.
                Console.WriteLine("That path exists already.");
                return;
            }            // Try to create the directory.
            di.Create();
            Console.WriteLine("The directory was created successfully.");            // Delete the directory.
            di.Delete();
            Console.WriteLine("The directory was deleted successfully.");        } 
        catch (Exception e) 
        {
            Console.WriteLine("The process failed: {0}", e.ToString());
        } 
        finally {}

Answer 4

int k = 0;
public void GetDirectorys(rootdirectory)
{
foreach(DirectoryInfo i in rootdirectory)
{
k++;
if(i.GetDirectories().Length != 0)
{
GetDirectorys(i);
}
}
}

Answer 5

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;namespace _4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private string AddNote(DirectoryInfo dd,TreeNode nodes)
        {            try
            {
                FileInfo[] infos = dd.GetFiles("*.*");
                foreach (FileInfo file in infos)
                {
                    nodes.Nodes.Add(file.Name);
                }
                DirectoryInfo[] dir = dd.GetDirectories();
                foreach (DirectoryInfo d in dir)
                {                    nodes.Nodes.Add(d.Name);
                    AddNote(d, nodes.Nodes[nodes.Nodes.Count - 1]);
                }
            }
            catch 
            {
            }
            return "";
        }        private void Form1_Load(object sender, EventArgs e)
        {
            MessageBox.Show("如果你C盘文件较多，电脑很烂，本程序打开时间（<30s）可能会过长请耐心等待。");
            this.treeView1.Nodes.Add("c:\\");
            DirectoryInfo ddd = new DirectoryInfo("c:\\");
            AddNote(ddd, this.treeView1.Nodes[0]);
            
        }        private void treeView1_DoubleClick(object sender, EventArgs e)
        {
            if (this.treeView1.SelectedNode.Nodes.Count > 0)
            {
                
                this.treeView1.SelectedNode.Expand();
            }
           
        }        //控制contextMenuStrip的可用性        private void treeView1_MouseClick(object sender, MouseEventArgs e)
        {
            if (this.treeView1.SelectedNode.Nodes.Count > 0)
            {
                this.treeView1.SelectedNode.ContextMenuStrip = this.contextMenuStrip1;
            }
        }        private void 全部展开ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.treeView1.SelectedNode.ExpandAll();
        }        private void 全部摺叠ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.treeView1.SelectedNode.Toggle();
        }        private void 展开选中节点ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.treeView1.SelectedNode.Expand();
        }    }}