Getting relative virtual path from physical path

How can I get the relative virtual path from the physical path in asp.net?
The reverse method is like below:

Server.MapPath("Virtual Path Here");

But what is the reverse of the upper method?

Answers:

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Method 1

Maybe this question is what you’re looking for.
There they suggest:

String RelativePath = AbsolutePath.Replace(Request.ServerVariables["APPL_PHYSICAL_PATH"], String.Empty);

Method 2

    public static string MapPathReverse(string fullServerPath)
    {            
        return @"~" + fullServerPath.Replace(HttpContext.Current.Request.PhysicalApplicationPath,String.Empty);
    }

Method 3

Request.ServerVariables["APPL_PHYSICAL_PATH"]

is fine, but not always. It is available only if there’s a HTTP request.

On the other hand the call

HostingEnvironment.ApplicationPhysicalPath

is always available.

Method 4

You could also do something like this:

string relativePath = absolutePath.Replace(HttpContext.Current.Server.MapPath("~/"), "~/").Replace(@"", "/");

The advantage is, that you don’t need HttpContext.Current.Request.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0