\ in path.combine in c# [duplicate]

Question

I know this is asked many times, but I couldn't exactly find what I need.

I want to get the server path and add image path to that. I did that

string mypath = Request.Url.GetLeftPart(UriPartial.Authority); string uploadPath = Path.Combine(mypath, "Upload/Images/"); Response.Write(uploadPath);

This printed http://localhost\Upload/Images/, why is there a \ in the middle of the path.

I fixed it by adding / to mypath like this

string mypath = Request.Url.GetLeftPart(UriPartial.Authority) + "/";

Is this the correct way? or is there is any better way to do this?

Ian · Accepted Answer · 2016-05-16 08:10:28Z

It is because Path.Combine is meant to combine typical directory path, something like:

C:\MyDir\MyDir2\MyMyDir

where the separator is \, not URL where the separator is /:

http://stackoverflow.com/questions/37249357/in-path-combine-in-c-sharp/37249373#37249373

If you want to combine URL path, you could use Uri instead:

Uri baseUri = new Uri(mypath); Uri myUri = new Uri(baseUri, "Upload/Images/");

Satpal · Accepted Answer · 2016-05-16 08:17:17Z

You should use Uri class for URLs, as Path.Combine is used for directory path operations.

Provides an object representation of a uniform resource identifier (URI) and easy access to the parts of the URI.

Uri baseUri = new Uri(mypath); Uri myUri = new Uri(baseUri, "Upload/Images/"); string uploadPath = myUri.AbsoluteUri;

And to get the URL, AbsoluteUri property can be used.

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