Why won't this Path.Combine work? [duplicate]

Answer 1

It looks like Path.Combine thinks the two slashes E:\\ refers to a UNC path, and a UNC path should not be prefixed with a drive letter. Change the contentFolder to E:\ and it should work.

Answer 2

It is explained in the method documentation:

If path2 does not include a root (for example, if path2 does not start with a separator character or a drive specification), the result is a concatenation of the two paths, with an intervening separator character. If path2 includes a root, path2 is returned.

I recommend you read it all to understand how all the possible combinations work out: Path.Combine Method

Answer 3

Path.Combine will return the second argument if it begins with a separation character (\).

Answer 4

You have a leading slash on @"\ReportedContent\". You don't want that (or the trailing one, I suspect) - try just:

string reportedContentFolderPath =
    Path.Combine(contentFolder.FullName.ToString(), "ReportedContent");

From the documentation:

If path2 does not include a root (for example, if path2 does not start with a separator character or a drive specification), the result is a concatenation of the two paths, with an intervening separator character. If path2 includes a root, path2 is returned.

In your case, path2 did contain a root, so it was returned without looking at path1.

Answer 5

From MSDN (emphasis mine):

public static string Combine(string path1, string path2)

[...]

Return Value

Type: System.String The combined paths. If one of the specified paths is a zero-length string, this method returns the other path. If path2 contains an absolute path, this method returns path2.

@"\ReportedContent\" is an absolute path because it begins with a backslash.

Answer 6

I'd bet that by specifying the slash as prefix in the second string, the Combine method assumes the current drive. Try to remove the slash.