搜索所有子目录中的某些文件，跳过某些文件夹

本文是小编为大家收集整理的关于搜索所有子目录中的某些文件，跳过某些文件夹的处理/解决方法，可以参考本文帮助大家快速定位并解决问题，中文翻译不准确的可切换到English标签页查看源文。

中文
English

问题描述

我想获取具有特定扩展名但跳过特定文件夹的所有文件的所有路径.我使用的代码可以正常工作，但不排除指定的文件夹.

public static IEnumerable<string> EnumerateFiles(string path, string searchPattern, SearchOption searchOpt)
{
    try
    {
        var dirFiles = Enumerable.Empty<string>();
        if (searchOpt == SearchOption.AllDirectories)
        {
            dirFiles = Directory.EnumerateDirectories(path)
                .Where(y => !y.Contains("Program Files") || !y.Contains("Windows"))
                .SelectMany(x => EnumerateFiles(x, searchPattern, searchOpt));
        }
        return dirFiles.Concat(Directory.EnumerateFiles(path, searchPattern));
    }
    catch (UnauthorizedAccessException ex)
    {
        return Enumerable.Empty<string>();
    }
}

但根据我对其他问题的研究，这正是我应该做的.请问我哪里错了?

用法如下:

var enumerable = EnumerateFiles(@"C:\", "*.jpg", SearchOption.AllDirectories);

推荐答案

我猜你想排除Program Files 和 Windows，所以使用&&而不是||.

.Where(y => !y.Contains("Program Files") && !y.Contains("Windows"))

本文地址：https://www.itbaoku.cn/post/1556829.html

百度翻译此文有道翻译此文

问题描述

I want to get all paths to all files with a certain extension but skipping certain folders. I use this code which works fine but does not exclude the specified folders.

public static IEnumerable<string> EnumerateFiles(string path, string searchPattern, SearchOption searchOpt)
{
    try
    {
        var dirFiles = Enumerable.Empty<string>();
        if (searchOpt == SearchOption.AllDirectories)
        {
            dirFiles = Directory.EnumerateDirectories(path)
                .Where(y => !y.Contains("Program Files") || !y.Contains("Windows"))
                .SelectMany(x => EnumerateFiles(x, searchPattern, searchOpt));
        }
        return dirFiles.Concat(Directory.EnumerateFiles(path, searchPattern));
    }
    catch (UnauthorizedAccessException ex)
    {
        return Enumerable.Empty<string>();
    }
}

But based on my research of other questions this is exactly what I should be doing. Where am I going wrong please?

Usage would be:

var enumerable = EnumerateFiles(@"C:\", "*.jpg", SearchOption.AllDirectories);

推荐答案

I guess that you want to exlude Program Files and Windows, so use && instead of ||.

.Where(y => !y.Contains("Program Files") && !y.Contains("Windows"))

上一篇：企业库数据访问应用块中的LINQ支持

下一篇：LINQ计数...最佳方法