Visual Basic® 2010 Unleashed

The ArrayList Collection

System.Collections.ArrayList is the most common nongeneric collection in the .NET Framework and represents an ordered set of items. With the word ordered we mean that you add items to the collection one after the other, which is different from sorting. ArrayList collections can store any .NET type because, at a higher level, it accepts items of type Object. The following code shows how you can create a new ArrayList and how you can set how many items it can contain by setting the Capacity property:

Dim mixedCollection As New ArrayList mixedCollection.Capacity = 10

Adding new items to an ArrayList is a simple task. To accomplish this you invoke the Add method that receives as an argument the object you want to add, as ...