如何从C＃中的Uri中删除％20？

Question

I want to remove %20 from file name but it should be in Uri format.

Dictionary<string, Uri> urilist = new Dictionary<string, Uri>();
  string fileName="test data.txt";

Uri partUriDocument;
partUriDocument = PackUriHelper.CreatePartUri(new Uri(fileName, UriKind.Relative));

urilist.Add(fileName, partUriDocument);

partUriDocument contains test%20data.txt .

How to make it test data.txt .

Answer 1

partUriDocument contains test%20data.txt.
How to make it test data.txt.

You can properly decode it using

var decodedFileName = WebUtility.UrlDecode(fileName); // returns "test data.txt"

Answer 2

What you want to do is called decoding. It's the same mecanic you're using when you go from

string str = "123"; //String
int number = Int.Parse(str) // Decode string into a number

You encode your string in an uri, you decode your uri in a string

Use Uri.Parse

var str = Uri.Parse(Uri);