Thank you. I managed to do it.

Thank you.

You are welcome. The hardest part is trying to figure out what you are looking for. There are as many shapes as the imagination, and as many methods of getting them. :) _________________________ Asu no koto o ieba, tenjo de nezumi ga warau. Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)

Hi You can used the Threading and Give the interval

Thanks Dave :)

pbraun wrote: it seems that it would be better to send one query to the DB that retrieves all of the necessary data from the DB, then do the processing (in your case, calculations). I'm afraid that it is not possible in my case, my condition is already complex enough at each loop :((, also it depends on some data outside the loop ... pbraun wrote: the constant queries to the DB is costing you the time Yes, the queries are costing much of the time! I would like to ask also does the .NET framework do anything behind the scene when a long operation is in run? I have encountered a warning when "another" long operation was running: The CLR has been unable to transition from COM context 0x1a2008 to COM context 0x1a2178 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations. Thanks for your help Phil, I really appreciate it :-D

CompMan44 wrote: I would take this to mean that AutoScroll only applies to controls owned by the form, not MDI children. I think you are right, thanks CompMan44:)

Create a new Bitmap, then use Graphics::FromBitmap ( or is it FromImage ? ). Then you can draw your other Bitmaps on to the new one, in whatever order you like. If you asked this in the wrong forum, and you're not using .NET, and you're also not using GDI+, then you can do the same with HBITMAPs and a HDC, but the code will be a little more involved. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Hi kilroytrout, you helped alot thanks,

ok, I will. Thanks all,

Thank you Paul,

thanks alot :)