How to use environment variables in Path.Combine()?

Question

I am trying to read in from a file where a folder path is specified using environment variable shortcuts, like the following:

source          dest
filename.ext    %programfiles(x86)%\FolderName\

I get the following error when trying to use Path.Combine() to concatenate this with a filename:

"Could not find a part of the path %programfiles(x86)%\FolderName\filename.ext"

Do I have to parse environment variables (like %programfiles(x86)% and %appdata%) out and manually replace them, or is there a another way to have these resolved? Seems like a common use case for copying files, e.g. patching.

Side note: consider using GetFolderPath(Environment.SpecialFolder) instead. — Alexei Levenkov
– Alexei Levenkov, Commented Oct 7, 2014 at 5:28

failedprogramming · Accepted Answer · 2014-10-07 04:27:33Z

11

Use this to get the environment variable path

var path = Environment.ExpandEnvironmentVariables(value);

answered Oct 7, 2014 at 4:27

failedprogramming

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