Where did my listbox rows and columns go?

Does deleteallrows from a listbox reset the number of columns and their titles?
If I add a bunch of rows to a listbox from an event, is there a method like update or redraw or paint that I need to call?
The listbox is inside a container control.

The actual listbox is a subclass of listbox, however it is blank with only one column after tried to repopulate it.

it doesn’t reset the number of cols, but it does (as advertised) delete all rows. You will need to listbox1.addrow to re-establish your data.

I don’t know what you are seeing here.

Sorry… my mistake… nermind…