>>>>>I have a listbox on my form. The RowType is 5 (array). My problem is that based on certain criteria the RowSource can change. So, I change the RowSource and Requery but once I have changed the source the Listbox always remains blank. When I look at the RowSource while the form is running it does change the RowSource but the display doesn't work. What am I missing?
>>>>
>>>>I assume that new RowSource is also array. Is it possible that new array isn't visible to listbox because it's local? BTW, it'should work w/o requery().
>>>
>>>Correct, the other RowSource is also an array. Both arrays are properties of the form. I didn't think it would need a requery but don't understand why the listbox stays blank after changing the RowSource.
>>>
>>>For instance, when I load the form the listbox has 4 rows in it and these are visible. I click a button and this fires of the change of RowSource. The Listbox goes blank and refuses to show any values after this.
>>>
>>>BTW, this is VFP 6, SP 5.
>>>
>>>TIA for any help
>>
>>Stupid question: maybe new rowsource array is empty?
>
>Nah, never a stupid question. You never know what I might overlook. I thought about this though and made sure that both arrays were populated and tested again. Same results. Thanks for the try though.

What would happend if you switch those arrays just for testing?