C# - 使用 SearchOption 在目录中搜索匹配的文件名 [英] C# - Search for Matching FileNames in a Directory using SearchOption

问题描述

背景:我正在使用 C# 和 OpenFileDialog & 开发一个 WinForms 应用程序.FileBrowserDialog 将 1) 在指定源目录的文件名中搜索特定字符串 2) 将文件复制到统一目录 3) 将多个文件从 excel 转换为 csv 文件，然后 3) 将所有生成的 csv 文件转换为 1 个大 csv使用命令行可执行文件

Background: I'm developing a WinForms application using C# with an OpenFileDialog & FileBrowserDialog that will 1) search for a specific string in the filenames of a specified source directory 2) copy files to consolidated directory 3) convert multiple files from excel to csv files, and then 3) convert all the generated csv files into 1 big csv file using a command line executable

示例:MSDN 提供了一个代码示例，其中列出了c:\"中以字母c"开头的所有目录和文件.在 http://msdn.microsoft.com/en-us/library/ms143448.aspx 所以我基于我的代码......

Example: MSDN provides a code example that lists all of the directories and files that begin with the letter "c" in "c:\". at http://msdn.microsoft.com/en-us/library/ms143448.aspx so I based my code on that...

问题:代码不会将任何文件复制到合并文件夹中，所以我很确定搜索不起作用.

Problem: The code doesn't copy any files to the consolidated folder so I'm pretty sure the search doesn't work.

我应该在这里改变什么?它不起作用:

What should I change on here? It doesn't work :

    string files = "*.xlsx";
    void DirSearch(string sDir)
    {
        try
        {
            foreach (string d in Directory.GetDirectories(sDir))
            {
                foreach (string f in Directory.GetFiles(d, files))
                {
                    // Is this the file we are looking for?
                    // check excel files for corp name in the filename.
                    if (f.Contains(m_sc.get_Corp()))
                    {
                        // check if thread is cancelled
                        if (m_EventStop.WaitOne(0, true))
                        {
                            // clean-up operations may be placed here
                            // ...

                            // inform main thread that this thread stopped
                            m_EventStopped.Set();

                            return;
                        }
                        else
                        {
                            string path = sDir;
                            string searchPattern = m_sc.get_Corp();

                            // A file has been found in this directory
                            DirectoryInfo di = new DirectoryInfo(path);
                            DirectoryInfo[] directories = di.GetDirectories(searchPattern, SearchOption.TopDirectoryOnly);

                            foreach (FileInfo file in files)
                            {

                              try
                              {
                              // Copy each selected xlsx files into the specified TargetFolder 

                              System.IO.File.Copy(FileName, consolidatedFolder + @"\" + System.IO.Path.GetFileName(FileName));
                              Log("File" + FileName + " has been copied to " + consolidatedFolder + @"\" + System.IO.Path.GetFileName(sourceFileOpenFileDialog.FileName));

                             // Convert each selected XLSX File to CSV Using the command prompt code... 
                              }
                            }
                       }
                  }

推荐答案

您发布的代码进行了两个单独的搜索循环:

The code you've posted does two separate search loops:

首先:

    foreach (string d in Directory.GetDirectories(sDir))
    {
        foreach (string f in Directory.GetFiles(d, files))
        {
            // Is this the file we are looking for?
            // check excel files for corp name in the filename.
            if (f.Contains(m_sc.get_Corp()))
            {

然后它也这样做:字符串路径 = sDir;string searchPattern = m_sc.get_Corp();

then within that it also does: string path = sDir; string searchPattern = m_sc.get_Corp();

                        // A file has been found in this directory
                        DirectoryInfo di = new DirectoryInfo(path);
                        DirectoryInfo[] directories = di.GetDirectories(searchPattern, SearchOption.TopDirectoryOnly);

                        foreach (FileInfo file in files)
                        {

在第一个中您正在寻找与 m_sc.get_Corp(); 匹配的文件，在第二个中您正在寻找目录...

In the first one you are looking for files matching m_sc.get_Corp();, in the second one you are lookinf for directories...

事实上……你的代码(伪代码?)毫无意义……

In fact... your code (pseudo-code?) makes no sense...

试试:

• 慢慢来
• 自己整理代码
• 如果你慢慢地重写它并将其分解成更小的块，你可能会发现你做错了什么.

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