Get relative path from one file to another on windows in C#

relative_path_from_to.cs

// See here for the following 2 methods: http://stackoverflow.com/questions/703281/getting-path-relative-to-the-current-working-directory

/// <summary>
/// Gets the relative path ("..\..\to_file_or_dir") of the current file/dir (to) in relation to another (from)
/// </summary>
/// <param name="to"></param>
/// <param name="from"></param>
/// <returns></returns>
public static string GetRelativePathFrom(this FileSystemInfo to, FileSystemInfo from)
{
    return from.GetRelativePathTo(to);
}

/// <summary>
/// Gets the relative path ("..\..\to_file_or_dir") of another file or directory (to) in relation to the current file/dir (from)
/// </summary>
/// <param name="to"></param>
/// <param name="from"></param>
/// <returns></returns>
public static string GetRelativePathTo(this FileSystemInfo from, FileSystemInfo to)
{
    Func<FileSystemInfo, string> getPath = fsi =>
    {
        var d = fsi as DirectoryInfo;
        return d == null ? fsi.FullName : d.FullName.TrimEnd(Path.DirectorySeparatorChar) + Path.DirectorySeparatorChar;
    };

    var fromPath = getPath(from);
    var toPath = getPath(to);

    var fromUri = new Uri(fromPath);
    var toUri = new Uri(toPath);

    var relativeUri = fromUri.MakeRelativeUri(toUri);
    var relativePath = Uri.UnescapeDataString(relativeUri.ToString());

    return relativePath.Replace('/', Path.DirectorySeparatorChar);
}