How to deal with a sealed class when I wanted to inherit and add properties

Question

In a recent question on Stack Overflow, I asked how I might parse through a file name to extra meta info about a file.

After I worked through that problem, I decided

Answer 1

This doesn't really solve your larger problem, but of course you can just make the properties you want to use act as proxies to the real properties underneath. E.g.

public long Length
{
    get {return FileInfo.Length;}
}

(With approriate null-checking of course.)