List Boxes & Combo Boxes

List boxes and Combo boxes are very useful in programs. They hold data that you put in them, and can also be changed at runtime. You will often find yourself using one when you need the user to choose data in the list/combo box, or you can use them to show the user data...

List Boxes

They are usually used for showing lists of things, for example a list of all your friends.

List box properties and methods

Columns	This determines the number of columns in a list box
List	Lists hold the data in your list box (ex. your friends names)
MultiSelect	MultiSelect, meaning you can highlight/select more then one item at the same time.
Sorted	Means that the list boxes data (your friends names) is sorted automatically, not the way you entered them
Style	Determines the list box's style
.ListCount	Counts the number of items in your list
.Selected	Does something w/ selected item
.AddItem	Adds the item to a list
.Clear	Clears the whole list
.RemoveItem	Removes the item

Private Sub Command1_Click()

    List1.AddItem Text1.Text

    Adds Text1.Text (whatever the text is) to the list

End Sub

List1.RemoveItem List1.ListIndex 'Removes the selected item by using the index property

Now for instance lets say you had a button to clear your list, your code would be something like "List1.Clear." As for Removing an item, well every item in the list box has a subscript, or a value for it. Your first Item's subscript by default is the number 0, but you can change the subscripts by changing the number in the ItemData (in list box properties). Many programmers switch the first subscript to 1 instead of 0. Now the more items you have in your listbox the higher the subscript should be, 1 then 2, then 3 etc... Back to .Removing an item it would be something like this; List1.RemoveItem(0) that removes the Item from the subscript 0 & then higher.

Combox Boxes

They are pretty much the same as list boxes. Most of the methods you learned above work the same w/ Combo boxes.

Combo box properties

List	Enter values into the combo box
Sorted	Determines if the combo box is sorted or just left the way you entered the items
Style	This determines the style/type of your combo box, there are 3 types by the way

Private Sub Command1_Click()

    Label1.Caption = Combo1.ListCount

    Shows the number of things in the combo box

End Sub

That's about it for list boxes & combo boxes (Look for an example in the DL example sec), lets see what's next...

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