C# Console : How to make the console stop scrolling automatically?

Question

I made an infinity donkey and i want console to stop scrolling to the end automatically so people can scroll to end by themselves.

I tried Console.SetCurserPosition(5 , 5); Didn't help.

Here is my code :

using System;
using System.Threading;
namespace Infinite_Donkey
{
    class Program
    {
        public static void Main(string[] args)
        {
            Console.WriteLine("Press 'Enter' and wait to see the magic!");
            Console.ReadLine();
            Console.WriteLine("            ^__^");
            Console.WriteLine("            (oo)_______");
            Console.WriteLine("            (__)       )\\");
            Console.WriteLine("                ||---||  ");
            Console.WriteLine("                ||   ||  ");
            Thread.Sleep (2000);
            do
            {
                Console.WriteLine("                ||   ||");
            }while(true);
        }
    }
}

Note : Program works kind of fine but i just want it to stop scrolling down automatically.

Answer 1

This is what I usually do:

Console.SetWindowPosition(0 , currentItem);

Answer 2

try the following code .... inside your main()

        int numPages = 1;
        int maxLine = 20;

        int currentLine = 0;

        while (true)
        {
            Console.WriteLine(String.Format($"Page {numPages}; Line {currentLine}"));
            currentLine++;
            if (currentLine > maxLine)
            {
                Console.WriteLine("Press ENTER to continue, 'x' to stop");
                string answer = Console.ReadLine();
                if (answer.Length > 0 && (answer[0] == 'x' || answer[0] == 'X'))
                {
                    break;
                }
                Console.Clear();
                Console.SetCursorPosition(0, 0);
                currentLine = 0;
                numPages++;
            }
        }

        Console.ReadLine();

Answer 3

Console.SetCursorPosition sets the position of the cursor. Which actually means that you're telling the console to start writing from that exact position and forward. That logically shouldn't stop the scrolling with a do {} while();

Console.SetWindowPosition is more fit to do the job, but you need to be aware of a Console buffer size. Even if you make the buffer size equal to the max value and use the set window position function, it won't do the trick, the donkey will keep showing, but you can't scroll and it will feel like jumping, have a look with this code:

static void Main(string[] args)
{

    Console.WriteLine("            ^__^");
    Console.WriteLine("            (oo)_______");
    Console.WriteLine("            (__)       )\\");
    Console.WriteLine("                ||---||  ");
    Console.SetBufferSize(1000, Int16.MaxValue-1);
    do
    {

        Console.WriteLine("                ||   ||");
        Console.SetWindowPosition(0, 0);
    } while (true);
}

So, what can you actually do to achieve your goal, or at least a part of it, set the buffer size to a maximum, write all your lines, then set the window position to the start, this way, you can scroll and keep scrolling until you hit the bottom, but I highly doubt that you could achieve your primary goal within a loop, but I could be wrong.

Check the code of the way to do it without an infinite loop:

static void Main(string[] args)
{

    Console.WriteLine("            ^__^");
    Console.WriteLine("            (oo)_______");
    Console.WriteLine("            (__)       )\\");
    Console.WriteLine("                ||---||  ");
    Console.SetBufferSize(1000, Int16.MaxValue - 1);

    for (int i = 0; i < Int16.MaxValue-10; i++)
    {
        Console.WriteLine("                ||   ||");
    }

    Console.SetWindowPosition(0, 0);
    Console.ReadLine();
}

I can't think of any other way to partially achieve your goal without user interaction and within a loop.

Answer 4

I couldn't get the answer i wanted but i improved my code with the tips you gave. Here is the code :

using System;
using System.Threading;
namespace Infinite_Donkey
{
    class Program
    {
        public static void Main(string[] args)
        {
            Console.WriteLine("EN : Press 'Enter' and wait to see the magic!");
            Console.WriteLine("TR : 'Enter' tuşuna basip bekle.");
            Console.Read();
            Console.WriteLine("            ^__^");
            Console.WriteLine("            (oo)_______");
            Console.WriteLine("            (__)       )\\");
            Console.WriteLine("                ||---||  ");
            Console.WriteLine("                ||   ||  ");
            Thread.Sleep(2000);
            do
            {
                Console.WriteLine("                ||   ||");
                Thread.Sleep(100);
            }while(true);
        }
    }
}

Answer 5

@user9257990: you can do it by setting console buffer size.

using System;
using System.Threading;
namespace Infinite_Donkey
{
    class Program
    {
        public static void Main(string[] args)
        {

            var largestWindowX = Console.WindowWidth;
            var largestWindowY = Console.WindowHeight;

            Console.BufferWidth = Console.WindowWidth = largestWindowX;
            Console.BufferHeight = Console.WindowHeight = largestWindowY;


            Console.WriteLine("Press 'Enter' and wait to see the magic!");
            Console.ReadLine();
            Console.WriteLine("            ^__^");
            Console.WriteLine("            (oo)_______");
            Console.WriteLine("            (__)       )\\");
            Console.WriteLine("                ||---||  ");
            Console.WriteLine("                ||   ||  ");
            Thread.Sleep (2000);
            do
            {
                Console.WriteLine("                ||   ||");
            }while(true);
        }
    }
}