Heriberto Torrado wrote: > I read this thread, but it's old and it is not very clear to me. > > http://forums.livecode.com/viewtopic.php?t=22112 > > I have the same problem than "Havanna". > > About six years ago I developed a Livecode desktop app for my company. > Several employees open and close the app several times a day. > Many fields are created at runtime. > > The current IDs are in the 250.000 > > Is there a limit? > Can we have a problem on the next years? > Did it changed with Livecode 64bits versions?
My understanding is that the 64-bit versions of LC are compatible with 64-bit OSes, but internal addressing is still 32-bit.
So AFAIK my comment from the thread you linked to still applies: IDs are 32-bit unsigned integers, so the range of possible values goes up to about 4 billion. If you never manually set IDs, since the engine begins with ID 101 and increments within a stack from there with each object created, for all practical purposes over the life cycle of an app there's little risk of running out of IDs. If you're curious about what happens when you exceed the range of possible values, you can set a control's ID to the highest value allowed (UINT4, or 4294967295), and then create some new controls. Last time I did that (several versions ago) I found nothing amiss during the current session, but after saving the stack I was unable to open it again. As long as you work with ID ranges well below the maximum, you should have no problem for many years even with the DataGrid or other controls that create large numbers of objects dynamically. Given practical memory limits, ID range could only be a problem if you go out of your way to set IDs to unnecessarily large numbers. If by chance you happen to have the first project in this community's history that actually runs out of IDs, the worse thing that would be needed would be to simply copy the controls to a new stack (could easily be automated), in which the ID numbers would be reset starting at 101. -- Richard Gaskin Fourth World Systems Software Design and Development for the Desktop, Mobile, and the Web ____________________________________________________________________ ambassa...@fourthworld.com http://www.FourthWorld.com _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
