Learn Visual Basic 6.0

3. Exploring the Visual Basic Toolbox

List Boxes

1. A list box displays a list of items from which the user can select one or more items. If the number of items exceeds the number that can be displayed, a scroll bar is automatically added.
   
   
2. List Box Properties:
   
   

   Appearance	Selects 3-D or flat appearance.
   List	Array of items in list box.
   ListCount	Number of items in list.
   ListIndex	The number of the most recently selected item in list. If no item is selected, ListIndex = -1.
   MultiSelect	Controls how items may be selected (0-no multiple selection allowed, 1-multiple selection allowed, 2-group selection allowed).
   Selected	Array with elements set equal to True or False, depending on whether corresponding list item is selected.
   Sorted	True means items are sorted in 'Ascii' order, else items appear in order added.
   Text	Text of most recently selected item.

   
   
3. List Box Events:
   
   

   Click	Event triggered when item in list is clicked.
   DblClick	Event triggered when item in list is double-clicked. Primary way used to process selection.

   
   
4. List Box Methods:
   
   

   AddItem	Allows you to insert item in list.
   Clear	Removes all items from list box.
   RemoveItem	Removes item from list box, as identified by index of item to remove.

   
   Examples
   
   lstExample.AddItem "This is an added item" ' adds text string to list
   lstExample.Clear ' clears the list box
   lstExample.RemoveItem 4 ' removes lstExample.List(4) from list box
   
   
5. Items in a list box are usually initialized in a Form_Load procedure. It's always a good idea to Clear a list box before initializing it.
   
   
6. You've seen list boxes before. In the standard 'Open File' window, the Directory box is a list box with MultiSelect equal to zero.

Counter Hit


This Homepage is special brought to you by CK Tan