File.Copy不会复制所有文件夹和目录 [英] File.Copy do not copy all the folder and directories

问题描述

大家好，我调用file.copy将文件和文件夹从源文件复制到目标文件。当我在没有调试器的情况下运行它时，File.copy没有将所有内容复制到目标。当我使用调试器调试程序时，代码就像魅力一样，任何人都知道为什么file.copy不会在没有调试器的情况下复制所有内容？以下是代码：

Hi guys,i called file.copy to copy file and folder from source to destination. When i run it without debugger the File.copy did not copy everything to destination. When I debug the program with debugger the code works like a charm, anyone have any idea why the file.copy do not copy everything without debugger? Below is the code:

public bool CopyFileAndFolder(string sourceFolder, string replacePath)
{
    bool result = false;
    try
    {
        foreach (string extractPath in Directory.GetDirectories(sourceFolder, "*", SearchOption.AllDirectories))
        {
            string destFolder = extractPath.Replace(sourceFolder, replacePath);
            if (!Directory.Exists(destFolder))
                Directory.CreateDirectory(destFolder);
        }

        foreach (string extractFile in Directory.GetFiles(sourceFolder, "*.*", SearchOption.AllDirectories))
        {
            string destFile = extractFile.Replace(sourceFolder, replacePath);
            File.Copy(extractFile, destFile, true);
        }
        result = true;

    }
    catch (Exception ex)
    {
        result = false;
        Trace.WriteLine(ex.Message);
    }
    return result;
}

推荐答案

您可以尝试更改这样的代码

You could try to change the code like this

public bool CopyFileAndFolder(string sourceFolder, string replacePath)
{
    bool result = false;
    try
    {
        foreach (string extractPath in Directory.GetDirectories(sourceFolder, "*", SearchOption.AllDirectories))
        {
            string destFolder = extractPath.Replace(sourceFolder, replacePath);
            if (!Directory.Exists(destFolder))
                Directory.CreateDirectory(destFolder);

            foreach (string extractFile in Directory.GetFiles(sourceFolder, "*.*", SearchOption.AllDirectories))
            {
                string destFile = Path.Combine(destFolder, Path.GetFileName(extractFile));
                File.Copy(extractFile, destFile, true);
            }      
        }
 
        result = true;
 
    }
    catch (Exception ex)
    {
        result = false;
        Trace.WriteLine(ex.Message);
    }
    return result;
}

也就是说，将文件复制循环移动到目录搜索循环中并稍微改变目标路径。



[更新]

我发现更容易使这个方法递归。据我所知，它对我有用。

That is, move the file copy loop into the directory search loop and change the destination path a bit.

[UPDATE]
I found it easier to make this method recursive instead. As far as I can tell it works for me.

// Recursive version
public bool CopyFileAndFolder(string sourceFolder, string backupPath)
{
    bool retVal = false;
    try
    {
        // First create the new backup directory
        if (!Directory.Exists(backupPath))
            Directory.CreateDirectory(backupPath);


        // Then copy all the files in this directory
        foreach (string fileName in Directory.GetFiles(sourceFolder, "*.*", SearchOption.TopDirectoryOnly))
        {
            string destFile = Path.Combine(backupPath, Path.GetFileName(fileName));
            File.Copy(fileName, destFile, true);
        }

        // Get the sub-diretories
        string[] directories = Directory.GetDirectories(sourceFolder, "*", SearchOption.TopDirectoryOnly);
        // This check is just to make the recursion break point more clear
        if (directories.Length == 0)
            return true;

        foreach (string directory in directories)
        {
            string destFolder = Path.Combine(backupPath, Path.GetFileName(directory));
            retVal = CopyFileAndFolder(directory, destFolder);
            if (!retVal)
                break;
        }
    }
    catch (Exception ex)
    {
        retVal = false;
        Trace.WriteLine(ex.Message);
    }
    return retVal;
}

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