How do I convert an absolute or relative URI path (e.g. /foo/bar.txt) to a (segmentwise) corresponding relative file system path (e.g. foo\bar.txt) in .NET?
My program is not an ASP.NET application.
views:
888answers:
4
+3
A:
Check out Server.MapPath.
http://msdn.microsoft.com/en-us/library/ms524632.aspx
If it's not an ASP.NET application, check out:
System.IO.Path.GetFullPath("filename")
dcp
2010-03-14 12:48:24
Gives me a "Uri formats are not supported" error, in .Net 3.5
Binary Worrier
2010-06-17 15:14:17
My program is not an ASP.NET application, how do I get access to the Server object?
acdx
2010-03-14 12:55:48
@acdx - I'm confused then...relative to what, a running application? Your question is tagged `uri`, so I'm confused if it's not web, explain?
Nick Craver
2010-03-14 13:00:22
I'd like to get a relative file path, such as `foo\bar.txt`, that I can pass to `Path.Combine` to create an absolute file path.
acdx
2010-03-14 13:02:41
@acdx - Relative means in relation to...in relation to **what** is the question, you're asking about a URI, but saying it's not web...this makes no sense and needs some clarification. For starters, if not a web app, what **are** you running?
Nick Craver
2010-03-14 13:04:53
My application is a regular .NET console application. I want to map a URI to a file system path. I thought the easiest way to do this would be to convert the URI path to a relative file system path and then pass it to `Path.Combine` along with a base path like `C:\abc\` to form an absolute file system path. About terminology, a relative path by definition doesn't contain information about what it relates to.
acdx
2010-03-14 13:16:48
@acdx - But, the thing figuring out what it relates to...it's relative to that, and you left that out of the question. A URI can go 20 places, is it on the same machine, running IIS? If none of the answers already posted here help, I'm at a loss to figure out what you're doing...a more detailed question is in order. Try updating with an input and result example, that'd be much more helpful.
Nick Craver
2010-03-14 13:27:12
"But, the thing figuring out what it relates to...it's relative to that, and you left that out of the question."Could you please rephrase that first sentence, I don't understand it at all.My program is concerned with taking a forward-slash-separated URI path as input (example given in question), and producing a backslash-separated relative file system path with the same path segments as output (example given in question). This relative output path could, if desired, then be combined with a base path on some machine to yield an absolute file path.
acdx
2010-03-14 13:42:41
+7
A:
Have you already tried Server.MapPath?
or Uri.LocalPath property? Something like following :
Uri uri = new Uri("file://server/filename.ext");
Console.WriteLine(uri.LocalPath);
ydobonmai
2010-03-14 12:50:48
A:
I figured out this way to produce a full absolute file system path from a relative or absolute URI and a base path.
With:
Uri basePathUri = new Uri(@"C:\abc\");
From a relative URI:
string filePath = new Uri(basePathUri, relativeUri).AbsolutePath;
From an absolute URI:
// baseUri is a URI used to derive a relative URI
Uri relativeUri = baseUri.MakeRelativeUri(absoluteUri);
string filePath = new Uri(basePathUri, relativeUri).AbsolutePath;
acdx
2010-03-14 15:19:27