Is it possible to use Path.GetRelativePath (.NET Core2) in WinForms proj targeting 4.7.1?

Question

This seems to be a pretty simple question, yet googling yield nothing useful.

I have VS2017 WinForms C# project targeting .NET Framework 4.7.1.

I would like to make use of Path.GetRelativePath from .NET Core 2.X.

Is it achievable (nuget package or something)?

PS. For those who are lazy to port .NET Core code themselves here is my adapted version of it.

Answer 1

A workaround: If for some reason, the Core library cannot be referenced or called at runtime, you can implement the function yourself, it is quite simple:

public string GetRelativePath(string relativeTo, string path)
{
    var uri = new Uri(relativeTo);
    var rel = Uri.UnescapeDataString(uri.MakeRelativeUri(new Uri(path)).ToString()).Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
    if (rel.Contains(Path.DirectorySeparatorChar.ToString()) == false)
    {
        rel = $".{ Path.DirectorySeparatorChar }{ rel }";
    }
    return rel;
}