How to delay an action using timer?

Question

Im trying to slowly draw a grid ( cell by cell ). I tried to make a timer which increments "ticks" variable and then put "if(ticks % 10 == 0)" inside of for loop but it will skip cells. How can i pause the "for" loop with a timer?
Piece of code:

private void timer1_Tick(object sender, EventArgs e)
{
tick++;
Text = tick.ToString();
}

private void Form1_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;

for (int i = 0; i < n; i++)
{
for (int j = 0; j < m; j++)
{
if (tick % 10 == 0)
g.DrawRectangle(Pens.Red, i * h, j * w, h, w);
}
}
}

Answer 1

Sure, you are right. Timer can be used.
For some reason I thought your question was about JavaScript, so ignore my previous comment.

https://learn.microsoft.com/en-us/dotnet/desktop/winforms/controls/run-procedures-at-set-intervals-with-wf-timer-component?view=netframeworkdesktop-4.8

Answer 2

You can use the setTimeout() function to introduce delayed actions in the browser's event loop. It is a bit tricky though, there are a few gotchas.
There is also the delay() function in jQuery but with more limited usage.

https://www.sitepoint.com/javascript-settimeout-function-examples/

https://www.sitepoint.com/delay-sleep-pause-wait/

Answer 3

Tibor Santa thank you, gonna try it tommorow

Answer 4

Tibor Santa is there any way to do this only with WinForm? For example in python(pygame) you can set tick-rate for whole program or use delta time, is it possible to achieve the same result with Timer from winform?