Encapsulates the collection of indexes of checked items (including items in an indeterminate state) in a CheckedListBox.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Thetype exposes the following members.
|Contains||Determines whether the specified index is located in the collection.|
|CopyTo||Copies the entire collection into an existing array at a specified location within the array.|
|Equals(Object)||Determines whether the specified object is equal to the current object. (Inherited from Object.)|
|Finalize||Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)|
|GetEnumerator||Returns an enumerator that can be used to iterate through the CheckedIndices collection.|
|GetHashCode||Serves as the default hash function. (Inherited from Object.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|IndexOf||Returns an index into the collection of checked indexes.|
|MemberwiseClone||Creates a shallow copy of the current Object. (Inherited from Object.)|
|ToString||Returns a string that represents the current object. (Inherited from Object.)|
|AsParallel||Enables parallelization of a query. (Defined by ParallelEnumerable.)|
|AsQueryable||Converts an IEnumerable to an IQueryable. (Defined by Queryable.)|
|Cast(TResult)||Casts the elements of an IEnumerable to the specified type. (Defined by Enumerable.)|
|OfType(TResult)||Filters the elements of an IEnumerable based on a specified type. (Defined by Enumerable.)|
|ICollection.IsSynchronized||Infrastructure. Gets a value indicating whether access to the is synchronized (thread safe).|
|ICollection.SyncRoot||Infrastructure. Gets an object that can be used to synchronize access to the collection of controls. For a description of this member, see ICollection.SyncRoot.|
|IList.Add||Infrastructure. Adds an item to the . For a description of this member, see IList.Add.|
|IList.Clear||Infrastructure. Removes all items from the . For a description of this member, see IList.Clear.|
|IList.Contains||Infrastructure. Determines whether the specified index is located within the . For a description of this member, see IList.Contains.|
|IList.IndexOf||Infrastructure. For a description of this member, see IList.IndexOf.|
|IList.Insert||Infrastructure. For a description of this member, see IList.Insert.|
|IList.IsFixedSize||Infrastructure. For a description of this member, see IList.IsFixedSize.|
|IList.Item||Infrastructure. For a description of this member, see IList.Item.|
|IList.Remove||Infrastructure. For a description of this member, see IList.Remove.|
|IList.RemoveAt||Infrastructure. or a description of this member, see IList.RemoveAt.|
The checked indexes collection is a subset of the indexes into the collection of all items in the CheckedListBox control. These indexes specify items in a checked or indeterminate state.
The following table is an example of the indexed collection of items in the control (all items contained in the control).
Based on the previous example, the following table shows the indexed collection of indexes of checked items.
Index of Item
The following example enumerates the checked items in the to see what check state an item is in. The example demonstrates using the GetItemCheckState method to set the check state of an item. The example also demonstrates using the CheckedIndices property to get the , 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.