Physical File Path

Question

What is the best way to get the physical path to a file in C#?

UPDATE:

I have a file name but I don't want to hard code the path to it since it may change. I just know its relative path but not its physical path.

Answer 1

For regular apps, Path.GetFullPath(path) will return this. If this is web, then MapPath is what you want (for example, Server.MapPath("~/foo/bar")).

Re comments; try HttpContext.Current.Server.MapPath(...); in the absense of HttpServerUtility (comments), then try VirtualPathUtility.ToAbsolute.