Brtdku

I am not a good programmer, it's rather my hobby.
So please don't judge me for being bad at programming. This is my current code ive made for the countdown timer.

int i = 000000;

private void timer1_Tick(object sender, EventArgs e)

{

   {

            i++;

            textBox1.Text = i.ToString() + "00:00:00";

   }

}

When I run the timer. then the TextBox1 isn't showing 00:00:01, but it's showing 100;00;00.
Thank you for reading my post and again, sorry for having soo bad programming knowledge.

You can use this:

TimeSpan time = TimeSpan.FromSeconds(i);

textBox1.Text = time.ToString(@"hh:mm:ss");

Ok, so you know how to use Timer but your problem is with string, when you use + on string you are concatenating them, so say "hello" + " world" is equal to "hello world", so when you concat i with 00:00:00 the output you see is very logical.

you can use snippet below to achieve your goal(just replace your form class content with this)

private Timer _timer;

private Label _label;

private int _elapsedSeconds;

public Form1()

{

    _timer = new Timer

    {

        Interval = 1000,

        Enabled = true

    };

    _timer.Tick += (sender, args) =>

    {

        _elapsedSeconds++;

        TimeSpan time = TimeSpan.FromSeconds(_elapsedSeconds);

        _label.Text = time.ToString(@"hh:mm:ss");

    };



    _label = new Label();



    Controls.Add(_label);

}

Edit

Tnx to @Juliet Wilson I edited how time is converted to string

I would suggest to use Stopwatch for that. It will do the magic you need. Here you can find good example of using Stopwatch class in C# https://www.dotnetperls.com/stopwatch.