Write a program in C# .Net to create a function for the sum of two numbers.

Answer:

using System;

namespace SumOfTwoNumbers
{
    class Program
    {
        static int AddTwoNumbers(int num1, int num2)
        {
            return num1 + num2;
        }

        static void Main(string[] args)
        {
            int number1 = 10;
            int number2 = 20;
            int sum = AddTwoNumbers(number1, number2);
            Console.WriteLine("The sum of " + number1 + " and " + number2 + " is: " + sum);
            Console.ReadLine();
        }
    }
}