how can we increase the length of array on runtime?

Question

hello guys 
how r u all ?

Q: How can we increase the length of array on runtime in c sharp?

i am trying this code:

 public class TestArray

    {

        static int size = 0;

        static int[] array = new int[size];

        public TestArray()

        {

            size++;

            Console.WriteLine(array[size]);

        }

    }

public class Program
{
     public static void Main(string[] args)
     {
        TestArray t = new TestArray();
     }
}
        

Reply soon 

Thanks.