Gets the collection of items in this CheckedListBox.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The property enables you to obtain a reference to the list of items that are currently stored in a CheckedListBox control. With this reference, you can add items, remove items, and obtain a count of the items in the collection. For more information on the tasks that can be performed with the item collection, see the CheckedListBox.ObjectCollection class reference topics.
The following example enumerates the checked items in the CheckedListBox.CheckedIndexCollection to see what check state an item is in. The example uses the property to get the CheckedListBox.ObjectCollection to retrieve the index of an item using the ListBox.ObjectCollection.IndexOf method. The example also demonstrates using the CheckedIndices property to get the CheckedListBox.CheckedIndexCollection, and the CheckedItems property to get the CheckedListBox.CheckedItemCollection.
The first loop uses the GetItemCheckState method to get the CheckState of each checked item, given the index of the item. The second loop also uses GetItemCheckState, but uses the ListBox.ObjectCollection.IndexOf method to retrieve the index for the item.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.