writing at multi-column listbox periodically

the intention is to display up to 10 columns of info, whereby each column has to be refresh/update with new info periodically. the idea you suggest cannot be used to update each column individually. furthermore, having to "swap out" the whole collection at once will create an observable blanking of listbox which is not acceptable in my case. hence, i need to be able to do an overwriting in each column. is there any index to each column that we can address (since listbox is set to multi-column)?? any suggestion?

Since list boxes use collections to display their selections, you could instead create a new collection, fill it with the desired items, and just swap out the whole collection of values at once. I don't remember which properties/methods did that, but I'm quite sure it's possible.