如何使用C#DirectoryInfo枚举具有所有子目录的Files? [英] How to EnumerateFiles with all subdirectories with C# DirectoryInfo?

问题描述

我发现这段代码从DirectoryInfo中获取文件数组:

I found this code that gets an array of files out of a DirectoryInfo :

FileInfo[] fileInfoArray = di.EnumerateFiles().Where(f => extensions.Contains(f.Extension.ToLower())).ToArray();

但它仅搜索DirectoryInfo路径的直接子代.即不包括孙子孙女.

But it only searches the direct children of the path of DirectoryInfo. i.e., it does not include grandchildren.

我想我需要在某个地方添加SearchOption.AllDirectories参数，但是在哪里?

I guess I need to add SearchOption.AllDirectories parameter to somewhere, but where?

我尝试过:

di.EnumerateFiles(SearchOption.AllDirectories).Where(f => extensions.Contains(f.Extension.ToLower())).ToArray();

但是会产生错误.

那我该如何搜索包括所有子目录在内的模式?

So how do I search with a pattern, including all subdirectories ?

感谢您的帮助！

推荐答案

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Look at the overloads of DirectoryInfo.EnumerateFiles - there's no overload taking just a SearchOption, but you can give a string and a SearchOption:

var files = di.EnumerateFiles("*", SearchOption.AllDirectories)
              .Where(f => extensions.Contains(f.Extension.ToLower()))
              .ToArray();

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