Question

I am attempting to create a variable or string from “Convert.ToChar(b[i])” within the following context:

    byte[] b = new byte[100];
    int k = s.Receive(b);
    Console.WriteLine("Recieved...");
    for (int i = 0; i < k; i++)
        Console.Write(Convert.ToChar(b[i]));

E.g.:

var str = Convert.ToChar(b[i]);

But the above does not work, as “i” is not defined within the current context

Answer 1

Is it just a case of the for loop not being given adequate scope? Try the following…

byte[] b = new byte[100];
int k = s.Receive(b);
Console.WriteLine("Recieved...");
for (int i = 0; i < k; i++)
{
    Console.Write(Convert.ToChar(b[i]));
    var myVariable = Convert.ToChar(b[i]);
}

Note that if you didn’t include the curly braces, the for loop would only have scope of the first line beneath it, and so the var = Convert.ToChar(b[i]); line would not be able to access the i variable in the loop scope.

That’s why I always make sure I put the curly braces in the code for a loop, even if it is for a single line within the loop – it is easy to track the scope of the loop that way.