>When you call Refresh() on a container, does it then call Refresh() on the children objects?

Yes, they do, and might even do exponentially. If you put the following code into the Refresh event of a container:

Thisform.Caption = Transform(Val(Thisform.Caption)+1)
DoDefault()

and then nest three of them, you have a total of 7 refresh calls. If you use DODEFAULT() in a Refresh method, you must use NODEFAULT, otherwise every contained control is refreshed twice, their contained controls 4 times, and so forth. That's a great way to slow down an application that requeries a combobox in the Refresh event of some innermost container and might make a SQL server query before. <g>