Question

Im working with the custom compiler from MSDN website. When I try to compile/run some test code (drag and drop to .exe), the console window opens then closes instead of staying open until I choose to close it. How do I keep it open?

Source: http://msdn.microsoft.com/en-us/magazine/cc136756.aspx#S8

Program.cs

if (args.Length != 1)
        {
            // Display title, reset cursor to normal, add space
            Console.WriteLine("Alt ver 1.0 (Alpha)");
            Console.WriteLine();
            Console.ReadLine();
            try
            {
                Scanner scanner = null;
                using (TextReader input = File.OpenText(args[0]))
                {
                    scanner = new Scanner(input);
                }
                Parser parser = new Parser(scanner.Tokens);
                CodeGen codeGen = new CodeGen(parser.Result, Path.GetFileNameWithoutExtension(args[0]) + ".exe");
            }
            catch (Exception e)
            {
                Console.Error.WriteLine(e.Message);
                Console.ReadLine();
            }
        } //if

Answer 1

add a Console.ReadLine();
at the last inside the try block
try this

    if (args.Length != 1)
            {
                // Display title, reset cursor to normal, add space
                Console.WriteLine("Alt ver 1.0 (Alpha)");
                Console.WriteLine();
                Console.ReadLine();
                try
                {
                    Scanner scanner = null;
                    using (TextReader input = File.OpenText(args[0]))
                    {
                        scanner = new Scanner(input);
                    }
                    Parser parser = new Parser(scanner.Tokens);
                    CodeGen codeGen = new CodeGen(parser.Result, Path.GetFileNameWithoutExtension(args[0]) + ".exe");
                }
                catch (Exception e)
                {
                    Console.Error.WriteLine(e.Message);
                    Console.ReadLine();
                }
finally
{
Console.Readkey();
}
            } //if
else
{
Console.WriteLine("no args");
Console.ReadKey();
}

EDIT:— passing argument problem
i have made this program and it works perfectly as far as getting filename as arguments
please have a look

class Program
    {
        static void Main(string[] args)
        {
            if (args.Length > 0)
            {
                foreach (var arg in args)
                {
                    Console.WriteLine(arg);
                }
                Console.ReadKey();
            }
            else
            {
                Console.WriteLine("NO ARGS");
                var fileName = Console.ReadLine();
                Main(new string[] { fileName });
            }
        }
    }