显示路径中的第一个文件夹名称

Question

嗨，有没有办法从路径中提取第一个目录名称，然后显示到文本框中。像C:\1stFolder\2nFolder\3rdFolder，那么我想在文本框中显示1stFolder

我有一个代码，只显示当前选定的文件夹。

textBox5.Text = new DirectoryInfo(FBD.SelectedPath).Name;

Answer 1

DirectoryInfo di = new DirectoryInfo(@"C:1stFolder2nFolder3rdFolder");
while(di.Parent != null && di.Parent.Parent != null)
{
di = di.Parent;
}
string firstFolderName = di.Name;

Answer 2

**根据下面的评论更新了答案**

试试这个：

void Main()
{
var dir = @"C:1stFolder2nFolder3rdFolder";

DirectoryInfo info = new System.IO.DirectoryInfo(dir);
var root = Directory.GetDirectoryRoot(dir);
while (root != info.Parent.FullName)
{
info = System.IO.Directory.GetParent(info.FullName);
}

Console.WriteLine(info.FullName);
}

Answer 3

为什么不尝试一些简单的

using System.Linq;
var path = "c:pathtosomething";
var firstDirectory = path.Split("\").Skip(1).FirstOrDefault();

甚至

var firstDirectory = path.Split("\")[1];