Null Reference Exception for Class Lists

Question

I am new to programming and am running into an issue when creating a class with a list property of another class and then accessing it in main. I am getting the exception \"

Answer 1

You need to initialize the Boolist.bookList in the default ctor:

class BookList
{
    public BookList() { bookList = new List; } // <<<<
    public List bookList { get; set; }
}