Represents the collection of selected items in the ListBox.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Thetype exposes the following members.
|Add||Adds an item to the list of selected items for a ListBox.|
|Clear||Removes all items from the collection of selected items.|
|Contains||Determines whether the specified item is located within 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 selected item collection.|
|GetHashCode||Serves as the default hash function. (Inherited from Object.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|IndexOf||Returns the index within the collection of the specified item.|
|MemberwiseClone||Creates a shallow copy of the current Object. (Inherited from Object.)|
|Remove||Removes the specified object from the collection of selected items.|
|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. For a description of this member, see ICollection.IsSynchronized.|
|ICollection.SyncRoot||Infrastructure. For a description of this member, see ICollection.SyncRoot.|
|IList.Add||Infrastructure. For a description of this member, see IList.Add.|
|IList.Clear||Infrastructure. For a description of this member, see IList.Clear.|
|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.Remove||Infrastructure. For a description of this member, see IList.Remove.|
|IList.RemoveAt||Infrastructure. For a description of this member, see IList.RemoveAt.|
The class stores the selected items in the ListBox. The items stored in the are items contained within the ListBox.ObjectCollection class. The ListBox.ObjectCollection class stores all items displayed in the ListBox.
Selection state within the ListBox
Based on the ListBox.ObjectCollection demonstrated in the previous table, the following table demonstrates how the would appear.
Selected item from ObjectCollection
You can use the properties and methods of this class to perform a variety of tasks with the collection. The Contains method enables you to determine whether an item from the ListBox.ObjectCollection class is a member of the . Once you know that the item is located within the collection, you can use the IndexOf method to determine where a specific item within the ListBox.ObjectCollection for the ListBox is stored within the .
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.