以编程方式更改文件夹名称答案

【问题标题】：Folder name change through programmatically以编程方式更改文件夹名称
【发布时间】：2018-03-13 15:23:44
【问题描述】：

我有 C:\Users\XXX\Desktop\Test\DUT3_Mode1A\DUT3_Mode1B\DUT3_Mode2 之类的文件夹。

我将浏览文件夹直到 Test。如果名称包含 Mode1A，我需要更改，然后我只需将其重命名为 M1A，就像使用名称的不同条件一样。例如我有像 DUT3_Mode1A\DUT3_Mode1B\DUT3_Mode2 这样的路径我需要重命名 DUT3_M1A\DUT3_M1B\DUT3_M2

请参阅下面的示例，例如我需要更改文件夹结构。

    M1A = Mode1A
    M1B = Mode1B
    M2 = Mode2
    M3 = Mode3
    M6 = Mode6
    Read = Read DTCs
    Clear = Clear DTCs
    EPB = EPB_APPL-REL
    PWRD = POWER_DOWN    


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace FolderStructure
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        string strpath = string.Empty;
        private void button1_Click(object sender, EventArgs e)
        {
            FolderBrowserDialog fbd = new FolderBrowserDialog();
            fbd.Description = "Custom Description";

            if (fbd.ShowDialog() == DialogResult.OK)
            {
                string sSelectedPath = fbd.SelectedPath;
                textBox1.Text = sSelectedPath;
                strpath = sSelectedPath;
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            ChangeFileName(strpath);
        }
        public void ChangeFileName(string folderPath)
        {
            string strtemp = string.Empty;            
            ////string[] folders = folderPath.Split(System.IO.Directory.GetDirectories(folderPath, "*", System.IO.SearchOption.AllDirectories););
            string[] folders = System.IO.Directory.GetDirectories(folderPath, "*", System.IO.SearchOption.AllDirectories);
            DirectoryInfo info = new DirectoryInfo(folderPath);
            foreach (string path in folders)
            {
                //code needed              

            }
        }
    }
}

【问题讨论】：

查看System.IO.Path提供的方法，可以帮助您反汇编和组合路径字符串。还可以查看正则表达式 (System.Text.RegularExpressions.Regex)，它肯定可以帮助您定义字符串替换/重命名的模式和规则。
您需要提出现有代码的问题，而不是要求读者为您编写代码。 //Need Code 需要替换为您为尝试解决问题而编写的代码。
@elgonzo 在这种情况下，每个文件夹名称上的字符串替换函数可能比挖掘正则表达式更容易，因为 Harry 只想用 M 替换 Mode。虽然学习正则表达式总是好的。
@NOhs，是的，如果 Harry 只想替换一定数量的特定子字符串/单词，那么 string.Replace 确实要简单得多。 :-)
只有您确切地知道目录结构，才能决定使用的最佳策略。我们不知道是否还有其他文件夹，以及我们在检查文件名时必须有多严格...如果您直接控制的结构或结构可以包含用户文件...

标签： c# structure filenames directory

【解决方案1】：

此方法将重命名给定路径中的所有目录和子目录，将 'from' 字符串替换为 'to' 字符串：

public static void Replace(string path, string from, string to)
{
    string prefix = path;
    string[] folders = System.IO.Directory.GetDirectories(path, "*", System.IO.SearchOption.TopDirectoryOnly);
    foreach (string folder in folders)
    {
        // recursively rename all subfolders first
        Replace(folder, from, to);

        string newFolderName = prefix + folder.Substring(prefix.Length).Replace(from, to);

        if (newFolderName != folder)
            System.IO.Directory.Move(folder, newFolderName);
    }
}

用法

    Replace(folderPath, "Mode", "M");

编辑：您确定要将难度级别更改为简单吗？

private static Dictionary<string, string> replacements = new Dictionary<string, string>
{
    { "Mode1A", "M1A" },
    { "Mode1B", "M1B" },
    { "Mode1", "M1" },
    { "Mode2", "M2" },
    { "Mode3", "M3" },
    { "Mode6", "M6" },
    { "Read DTCs", "Read" },
    { "Clear DTCs", "Clear" },
    { "EPB_APPL-REL", "EPB" },
    { "POWER_DOWN", "PWRD" }
};

private void button2_Click(object sender, EventArgs e)
{
    ChangeFolderNames();
}

private void ChangeFolderNames()
{
    foreach(KeyValuePair<string, string> pair in replacements)
        Replace(strpath, pair.Key, pair.Value);
}

public static void Replace(string path, string from, string to)
{
    string prefix = path;
    string[] folders = System.IO.Directory.GetDirectories(path, "*", System.IO.SearchOption.TopDirectoryOnly);
    foreach (string folder in folders)
    {
        // recursively rename all subfolders first
        Replace(folder, from, to);

        string newFolderName = prefix + folder.Substring(prefix.Length).Replace(from, to);

        if (newFolderName != folder)
            System.IO.Directory.Move(folder, newFolderName);
    }
}

【讨论】：

感谢重播。请在上面找到更新的代码并帮助我我需要做什么
出现异常，例如源路径和目标路径必须不同。
我观察到 System.IO.Directory.Move(folder, newFolderName);文件夹和 newFolderName 路径相同。
传入的文件夹路径是什么？它是否与字典中的条目匹配。您不应收到异常，因为代码会在尝试重命名之前检查差异。
传入文件夹路径是字符串前缀=路径；只有这个

【解决方案2】：

您可以修改下面的递归方法来重命名文件。下面的代码将所有文件名写入 xml 格式。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
using System.IO;

namespace SAveDirectoriesXml
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        const string FOLDER = @"c:\temp";
        static XmlWriter writer = null;
        static void Main(string[] args)
        {
            XmlWriterSettings settings = new XmlWriterSettings();
            settings.Indent = true;

            writer = XmlWriter.Create(FILENAME, settings);
            writer.WriteStartDocument(true);

            DirectoryInfo info = new DirectoryInfo(FOLDER);
            WriteTree(info);

            writer.WriteEndDocument();
            writer.Flush();
            writer.Close();
            Console.WriteLine("Enter Return");
            Console.ReadLine();

        }
        static long WriteTree(DirectoryInfo info)
        {
            long size = 0;
            writer.WriteStartElement("Folder");
            try
            {
                writer.WriteAttributeString("name", info.Name);
                writer.WriteAttributeString("numberSubFolders", info.GetDirectories().Count().ToString());
                writer.WriteAttributeString("numberFiles", info.GetFiles().Count().ToString());
                writer.WriteAttributeString("date", info.LastWriteTime.ToString());


                foreach (DirectoryInfo childInfo in info.GetDirectories())
                {
                    size += WriteTree(childInfo);
                }

            }
            catch (Exception ex)
            {
                string errorMsg = string.Format("Exception Folder : {0}, Error : {1}", info.FullName, ex.Message);
                Console.WriteLine(errorMsg);
                writer.WriteElementString("Error", errorMsg);
            }

            FileInfo[] fileInfo = null;
            try
            {
                fileInfo = info.GetFiles();
            }
            catch (Exception ex)
            {
                string errorMsg = string.Format("Exception FileInfo : {0}, Error : {1}", info.FullName, ex.Message);
                Console.WriteLine(errorMsg);
                writer.WriteElementString("Error",errorMsg);
            }

            if (fileInfo != null)
            {
                foreach (FileInfo finfo in fileInfo)
                {
                    try
                    {
                        writer.WriteStartElement("File");
                        writer.WriteAttributeString("name", finfo.Name);
                        writer.WriteAttributeString("size", finfo.Length.ToString());
                        writer.WriteAttributeString("date", info.LastWriteTime.ToString());
                        writer.WriteEndElement();
                        size += finfo.Length;
                    }
                    catch (Exception ex)
                    {
                        string errorMsg = string.Format("Exception File : {0}, Error : {1}", finfo.FullName, ex.Message);
                        Console.WriteLine(errorMsg);
                        writer.WriteElementString("Error", errorMsg);
                    }
                }
            }

            writer.WriteElementString("size", size.ToString());
            writer.WriteEndElement();
            return size;

        }
    }
}

【讨论】：