When working with ComboBoxes and ListBoxes, we often find the need to
select the first item in the list by default. This can be done when the form
loads, or when the rowsource values of the ListBox or ComboBox are changed.
We've written a new paper containing an explanation and sample database of how to do this with the ItemData(0) property.
Our example database contains a form with a ComboBox containing
ProductCategoties, and a ListBox containing Products.
When the form loads, it selects the first Category in the list. When the Category is changed, the Products list is updated, and the first product is selected.
To learn more, read our tip on Microsoft Access Forms: Selecting the First Item in a ComboBox or ListBox and download our sample database.