Question

This is mainly a theoretical question i.e I don’t have any need for a practical solution but when using foreach in MS V C# 2010 with the following code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {

            int[] ints = new int[7]{0,0,0,0,0,0,0};
           foreach (int i in ints)
           {
                i = 10;

           }
           Console.ReadKey();
        }
    }
}

I get the error which tells me that I cannot modify i because it is a foreach variable,now if I wanted to I could do this simple task a number of other ways but the thing is I haven’t seen anything in the documentation which would disallow what I’m trying to do and I think foreach should give you the ability to change the variable within the list.

Is there something I’m missing?

Answer 1

Use a for loop instead and modify the values using ints[i]