ListItemCollection Class
Assembly: System.Web (in system.web.dll)
The ListItemCollection class represents a collection of ListItem objects. The ListItem objects, in turn, represent the items displayed in list controls, such as the ListBox. To programmatically retrieve ListItem objects from a list control, use one of following methods:
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Use the indexer to get a single ListItem from the collection, using array notation.
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Use the CopyTo method to copy the contents of the collection to a System.Array object, which can then be used to get items from the collection.
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Use the GetEnumerator method to create a System.Collections.IEnumerator implemented object, which can then be used to get items from the collection.
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Use foreach (C#) or For Each (Visual Basic) to iterate throught the collection.
The Count property specifies the total number of items in the collection, and is commonly used to determine the upper bound of the collection. You can add and remove items from the collection by using the Add and Remove methods.
The following code example demonstrates creating ListItemCollection objects, adding items to the collections, and removing items from the collections. In the example, the ListItemCollection named listBoxData is used as the data source for a ListBox control called ListBox1, and the ListItemCollection called ddBoxData is used as the data source for a DropDownList control called DropDownList1.
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.