How do I access a variable outside of an foreach (C#)

Question

I'm trying to get the variable result from a foreach in my main method. The code looks like this:

    static void Main(string[] args)
    {

        ArrayList lines = GetLines("test.txt", "8394", true);
        foreach (string s in lines)
        {
            string result = s;
        }
        Console.WriteLine(result);
    }

As you can see it returns an error because I cannot access the variable outside of the foreach. How do I access it?

Solution 1

I cannot understand what do you want to achieve... but the code should be this:

 ArrayList lines = GetLines("test.txt", "8394", true);
 string result=string.Empty;       
 foreach (string s in lines)
        {
            result = s;
        }
        Console.WriteLine(result);

I think you want do to something like this:

 ArrayList lines = GetLines("test.txt", "8394", true);

 foreach (string s in lines)
        {
           Console.WriteLine(s);
        }

Solution 2

Your code is wrong logically. You loop through some lines, assign them to a variable, then do nothing to it, then assign the next line to a new variable (each time the loop gets another line, another variable called result is created), and so on.

This could be considered a logical code:

string names = string.Empty;
foreach (string name in namesList)
{
    names += ", " + name;
}
console.WriteLine(names);

Solution 3

Declare string result outside the foreach loop

string result = "" ;

foreach (string name in namesList)
{
    names += ", " + name;
}

....etc