ListView.CheckedListViewItemCollection ListView.CheckedListViewItemCollection ListView.CheckedListViewItemCollection ListView.CheckedListViewItemCollection Class


Represents the collection of checked items in a list view control.

public: ref class ListView::CheckedListViewItemCollection : System::Collections::IList
public class ListView.CheckedListViewItemCollection : System.Collections.IList
type ListView.CheckedListViewItemCollection = class
    interface IList
    interface ICollection
    interface IEnumerable
Public Class ListView.CheckedListViewItemCollection
Implements IList


A ListView.CheckedListViewItemCollection stores the checked items in a ListView control. Items can only be checked if the CheckBoxes property of the ListView control is set to true. The items stored in the ListView.CheckedListViewItemCollection are items contained in the ListView.ListViewItemCollection. The ListView.ListViewItemCollection class stores all items displayed in the ListView control.

The following table shows an example of how the ListView.ListViewItemCollection stores the items of the ListView as well as their selection states in an example ListView control.

Index Item Checked state in the ListView
0 Item1 Unchecked
1 Item2 Checked
2 Item3 Unchecked
3 Item4 Checked
4 Item5 Checked

Based on the ListView.ListViewItemCollection example in the previous table, the following table demonstrates how the ListView.CheckedListViewItemCollection would appear.

Index Checked item in ListViewItemCollection
0 Item2
1 Item4
2 Item5

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 ListView.ListViewItemCollection class is a member of the ListView.CheckedListViewItemCollection. Once you know that the item is in the collection, you can use the IndexOf method to determine the position of the item in the ListView.CheckedListViewItemCollection.


ListView.CheckedListViewItemCollection(ListView) ListView.CheckedListViewItemCollection(ListView) ListView.CheckedListViewItemCollection(ListView) ListView.CheckedListViewItemCollection(ListView)

Initializes a new instance of the ListView.CheckedListViewItemCollection class.


Count Count Count Count

Gets the number of items in the collection.

IsReadOnly IsReadOnly IsReadOnly IsReadOnly

Gets a value indicating whether the collection is read-only.

Item[Int32] Item[Int32] Item[Int32] Item[Int32]

Gets the item at the specified index within the collection.

Item[String] Item[String] Item[String] Item[String]

Gets an item with the specified key within the collection.


Contains(ListViewItem) Contains(ListViewItem) Contains(ListViewItem) Contains(ListViewItem)

Determines whether the specified item is located in the collection.

ContainsKey(String) ContainsKey(String) ContainsKey(String) ContainsKey(String)

Determines if a column with the specified key is contained in the collection.

CopyTo(Array, Int32) CopyTo(Array, Int32) CopyTo(Array, Int32) CopyTo(Array, Int32)

Copies the entire collection into an existing array at a specified location within the array.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetEnumerator() GetEnumerator() GetEnumerator() GetEnumerator()

Returns an enumerator that can be used to iterate through the checked item collection.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
IndexOf(ListViewItem) IndexOf(ListViewItem) IndexOf(ListViewItem) IndexOf(ListViewItem)

Returns the index within the collection of the specified item.

IndexOfKey(String) IndexOfKey(String) IndexOfKey(String) IndexOfKey(String)

Determines the index for an item with the specified key.

MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Returns a string that represents the current object.

(Inherited from Object)

Explicit Interface Implementations

ICollection.IsSynchronized ICollection.IsSynchronized ICollection.IsSynchronized ICollection.IsSynchronized

Gets a value indicating whether access to the ListView.CheckedListViewItemCollection is synchronized (thread safe).

ICollection.SyncRoot ICollection.SyncRoot ICollection.SyncRoot ICollection.SyncRoot

Gets an object that can be used to synchronize access to the collection of controls.

IList.Add(Object) IList.Add(Object) IList.Add(Object) IList.Add(Object)

Adds an item to the collection.

IList.Clear() IList.Clear() IList.Clear() IList.Clear()

Removes all items from the collection.

IList.Contains(Object) IList.Contains(Object) IList.Contains(Object) IList.Contains(Object)

Verifies whether the item is checked.

IList.IndexOf(Object) IList.IndexOf(Object) IList.IndexOf(Object) IList.IndexOf(Object)

Returns the index within the collection of the specified item.

IList.Insert(Int32, Object) IList.Insert(Int32, Object) IList.Insert(Int32, Object) IList.Insert(Int32, Object)

Inserts an item into the collection at a specified index.

IList.IsFixedSize IList.IsFixedSize IList.IsFixedSize IList.IsFixedSize

Gets a value indicating whether the collection has a fixed size.

IList.Item[Int32] IList.Item[Int32] IList.Item[Int32] IList.Item[Int32]

Gets or sets an object from the collection.

IList.Remove(Object) IList.Remove(Object) IList.Remove(Object) IList.Remove(Object)

Removes the first occurrence of an item from the collection.

IList.RemoveAt(Int32) IList.RemoveAt(Int32) IList.RemoveAt(Int32) IList.RemoveAt(Int32)

Removes an item from the collection at the specified index.

Extension Methods

Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable)

Casts the elements of an IEnumerable to the specified type.

OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable)

Filters the elements of an IEnumerable based on a specified type.

AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable)

Enables parallelization of a query.

AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable)

Converts an IEnumerable to an IQueryable.

Applies to