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Chapter 18: UserForm Techniques and Tricks
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If no item in the ListBox is selected, the ListIndex property returns –1.
However, this will never be the case for this particular ListBox, because code
in the UserForm_Initialize procedure selected the first item. So, there will
always be a selected item, if the user doesn’t actually select a month.
Figure 18-4 shows how this looks.
Figure 18-4:
Determining
which item
in a ListBox
is selected.
The first item in a ListBox has a ListIndex of 0, not 1 (as you might expect).
This is always the case, even if you use an Option Base 1 statement to change
the default lower bound for arrays.
This example is available at this book’s Web site.
Determining multiple selections
If your ListBox is set up so the user can select more than one item, you find
that the ListIndex property returns only the last item selected. To determine
all selected items, you need to use the Selected property, which contains an
array.
To allow multiple selections in a ListBox, set the MultiSelect property to either
1 or 2. You can do so at design time by using the Properties window or at runtime
by using a VBA statement such as this:
UserForm1.ListBox1.MultiSelect = 1
The MultiSelect property has three possible settings. The meaning of each is
shown in Table 18-1.