Adding a blank (null) to a combobox selection list.
Posted on 2007-04-03
I have several combo boxes that act as filters for a listbox on the same form.
When the form opens, the combo boxes are blank and all records are shown in the listbox.
When a selection is made in one or more of the combo boxes, the list is filtered. That all works fine.
However, I would like an easy way to set a combobox back to null, thus removing it's value as a filter. I think the easiest way for a user to understand/accomplish would be if there was a "blank" selection in the combo box selections. How can I add one?