Question

I created a class that’s something like this:

    public class MovieTheaterList
    {
        public DateTime Date { get; private set; }
        public int NumTheaters { get; private set; }
        public Theater[] Theaters { get; private set; }
    }

    public class Theater
    {
        public string Name;
    }

I want to be able to add items to the Theaters array of the MovieTheaterList class, but when I try to access it, it is showing up as an IEnumerable type and there is no Add() method?

I’m used to using arrays in structs and classes in C/C++, but how can I add a new item to the array in .NET 3.5?

Answer 1

Expose Theaters as an IList, not an array, and you’ll be able to add / remove items from it.
e.g.

public class MovieTheaterList
{
    // don't forget to initialize the list backing your property
    private List<Theater> _theaterList = new List<Theater>(); 

    public DateTime Date { get; private set; }
    public int NumTheaters { get; private set; }

    // set is unnecessary, since you'll just be adding to / removing from the list, rather than replacing it entirely
    public IList<Theater> Theaters { get { return _theaterList; } }
}