Drowing and Delaying

Question

I have such as a cod it should be wait for 3second and then drow line and repeat all this 4 times but it waits 12 second(3x4) and the drows 4 lines at onse. what is the problem?? ////////////////////////////////////////////////////////////////////////////////// Pen myPen = new Pen(System.Drawing.Color.Red 1); for (int ii = 0; ii <= 3; ii++) { Thread.Sleep(3000); //????? ?? 3 ??????? graphDrawingAxis.DrawLine(myPen ii*200 350 200 120); } /////////////////////////////////////////////////////////////////////////////

Muhammad Shahid Farooq · Answer

First choice is Timer & second is Thread.

Arto · Answer

Application.DoEvents() doesn't work The reasen for this is following: I need to drow lines after every 3 seconds so I need some pouse for 3 second. I think using the timer will help.

Alan · Answer

If I were you I'd avoid the use of Thread.Sleep() in the UI thread. Even if you can get it to work by calling Application.DoEvents() the delay produced may not be constant because of the time taken to process pending events. I'd use a System.Windows.Forms.Timer instead.

Ryan Alford · Answer

after the line of code where you draw this line add this line of code... Application.DoEvents();