Question

How can I compare two generic collections? Here’s my attempt with two string arrays, but it doesn’t return true.

namespace genericCollections
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] xx = new string[] { "gfdg", "gfgfd", "fgfgfd" };
            string[] yy = new string[] { "gfdg", "gfgfd", "fgfgfd" };
            Console.WriteLine(ComparerCollection(xx, yy).ToString());
            Console.ReadKey();
        }

        static bool ComparerCollection<T>(ICollection<T> x, ICollection<T> y)
        {
            return x.Equals(y);
        }
    }
}

Answer 1

Call Enumerable.SequenceEqual:

bool arraysAreEqual = xx.SequenceEqual(yy);