Serialization

Question

What needs to be changed for serialization to succeed?
https://code.sololearn.com/cZXhJ3SPZy8H/#cs

Answer 1

You should mark Student, StudenName and Date structures with [Serializable] attribute.

There are also missing using statements:
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;

Answer 2

gambler thanks a lot)