Sleep or delay functioning in VB.Net

[deantop]

I am using a picture box that draws circles (points) in a 2-dimensional plot. Each point is shown on the plot separately through using a "For-Next" statement. In fact, the coordinates x(i),y(i) are calculated and then displayed on the plot by an Ellipse drawing method. In order to provide a realistic sense of drawing, I need to make a delay between tandem drawings of circles. So I used the code system.threading.thread.sleep(1000); however, the whole thread halts and stops drawing and then deliver the plotted graph as a whole at end. Instead of the code, I used a timer; but it didn't work properly, too. I also employed the stopwatch object; it however did not work, too. I also couldn't find a (API) sleep function to add to my program. I have used creating objects , e.g. font object, color object, pen object, etc., and deleting the objects (by Dispose method and set Nothing) after they are not needed to exist at that immediate time. Do you know any solution? Do you know about Windows API Sleep function in VB.Net ? Thank you for your response.

[Arjay]

Sounds like you're putting the sleep into the wrong part of the code, but you'll need to post the code to be sure.

[DataMiser]

At a guess I would think that you are doing your drawing on the UI thread and not allowing the UI to update the display.
You might want to try adding a refresh after each draw and before each sleep.

[AmineRullan]

At a guess I would think that you are doing your drawing on the UI thread and not allowing the UI to update the display.
You might want to try adding a refresh after each draw and before each sleep.

is this only in UI case???

[2kaud]

As Arjay mentioned in post #2, it would be helpful if you could post the code used.

[AmineRullan]

As Arjay mentioned in post #2, it would be helpful if you could post the code used.

fine.. got it