Is there a maximum as to the number of controls that can be on a form? I have a tab control on a form with seven tabs and at least 50 textboxes on each tab and the IDE seems to have trouble handling it.

Thanks,
cj

Well, although it is discussed before, I'd like to make some summary since the thread looks out of order.

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=770632&SiteID=1

I think there IS a limit on the maximum number of the controls because the system has the a limit number for GDI handlers. This value is stored in registry

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\Current Version\Windows\GDIProcessHandleQuota

DONT changethis registry valuegreater than16,000 since it may be failed if you want to change a value greater than that max value.

well yes, after adding such a number of controls you will find problems....but the SP1 should hopefully fix this problem (currently in beta). Remember, the more you add, the more work needs to be done, performance will degrade.

AFAIK there is no limitation but rather on the resources (memory for example). I've heard people say they can add 25000 controls but of course struggles to load. Some are less but I think its mainly on the resources available

Well, although it is discussed before, I'd like to make some summary since the thread looks out of order.

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=770632&SiteID=1

I think there IS a limit on the maximum number of the controls because the system has the a limit number for GDI handlers. This value is stored in registry

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\Current Version\Windows\GDIProcessHandleQuota

DONT changethis registry valuegreater than16,000 since it may be failed if you want to change a value greater than that max value.

Thank you, this is helpful.