Cannot implicitly convert type string to int

Question

    Console.WriteLine (\"Please enter some numbers\");
        int sum = 0;
        for(;;)
        {
            string input = Console.ReadLine ();
            if          


        

Answer 1

to check if the input of the user is right i would prefer

int userInput = 0;
if( int.TryParse( input, out userInput ) == false )
{
     break;
}

This is just an advise and not directly a solution to your problem. There are enough answers =)