我如何从一个路径的相对路径另一个在C＃ [英] How do I get a relative path from one path to another in C#

问题描述

我希望有一个内置的.NET方法要做到这一点，但我没有找到它。

I'm hoping there is a built in .NET method to do this, but I'm not finding it.

我有，我知道是同根驱动器上的两条路，我希望能够得到一个相对路径，从一边到另一边。

I have two paths that I know to be on the same root drive, I want to be able to get a relative path from one to the other.

string path1 = @"c:\dir1\dir2\";
string path2 = @"c:\dir1\dir3\file1.txt";
string relPath = MysteryFunctionThatShouldExist(path1, path2); 
// relPath == "..\dir3\file1.txt"

这是否函数存在吗？如果不是这将是实现它的最好方法是什么？

Does this function exist? If not what would be the best way to implement it?

推荐答案

乌里和

Uri path1 = new Uri(@"c:\dir1\dir2\");
Uri path2 = new Uri(@"c:\dir1\dir3\file1.txt");
Uri diff = path1.MakeRelativeUri(path2);
string relPath = diff.OriginalString;

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