CheckedListBox.Items CheckedListBox.Items CheckedListBox.Items CheckedListBox.Items Property

定義

この CheckedListBox 内の項目のコレクションを取得します。Gets the collection of items in this CheckedListBox.

public:
 property System::Windows::Forms::CheckedListBox::ObjectCollection ^ Items { System::Windows::Forms::CheckedListBox::ObjectCollection ^ get(); };
public System.Windows.Forms.CheckedListBox.ObjectCollection Items { get; }
member this.Items : System.Windows.Forms.CheckedListBox.ObjectCollection
Public ReadOnly Property Items As CheckedListBox.ObjectCollection

プロパティ値

次の例では、内のチェックCheckedListBox.CheckedIndexCollectionされた項目を列挙して、項目がどのような状態であるかを確認します。The following example enumerates the checked items in the CheckedListBox.CheckedIndexCollection to see what check state an item is in. この例ではItemsCheckedListBox.ObjectCollectionプロパティを使用してを取得し、 ListBox.ObjectCollection.IndexOfメソッドを使用して項目のインデックスを取得します。The example uses the Items property to get the CheckedListBox.ObjectCollection to retrieve the index of an item using the ListBox.ObjectCollection.IndexOf method. この例CheckedIndicesでは、プロパティを使用してCheckedListBox.CheckedIndexCollectionを取得する方法とCheckedItems 、プロパティCheckedListBox.CheckedItemCollectionを使用してを取得する方法も示しています。The example also demonstrates using the CheckedIndices property to get the CheckedListBox.CheckedIndexCollection, and the CheckedItems property to get the CheckedListBox.CheckedItemCollection.

最初のループではGetItemCheckState 、メソッドを使用CheckStateして、項目のインデックスを指定して、チェックされた各項目のを取得します。The first loop uses the GetItemCheckState method to get the CheckState of each checked item, given the index of the item. 2番目のループGetItemCheckStateでは、もListBox.ObjectCollection.IndexOf使用しますが、メソッドを使用して項目のインデックスを取得します。The second loop also uses GetItemCheckState, but uses the ListBox.ObjectCollection.IndexOf method to retrieve the index for the item.

void WhatIsChecked_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
   
   // Display in a message box all the items that are checked.
   // First show the index and check state of all selected items.
   IEnumerator^ myEnum1 = checkedListBox1->CheckedIndices->GetEnumerator();
   while ( myEnum1->MoveNext() )
   {
      Int32 indexChecked =  *safe_cast<Int32^>(myEnum1->Current);
      
      // The indexChecked variable contains the index of the item.
      MessageBox::Show( String::Concat( "Index#: ", indexChecked, ", is checked. Checked state is: ", checkedListBox1->GetItemCheckState( indexChecked ), "." ) );
   }

   
   // Next show the Object* title and check state for each item selected.
   IEnumerator^ myEnum2 = checkedListBox1->CheckedItems->GetEnumerator();
   while ( myEnum2->MoveNext() )
   {
      Object^ itemChecked = safe_cast<Object^>(myEnum2->Current);
      
      // Use the IndexOf method to get the index of an item.
      MessageBox::Show( String::Concat( "Item with title: \"", itemChecked, "\", is checked. Checked state is: ", checkedListBox1->GetItemCheckState( checkedListBox1->Items->IndexOf( itemChecked ) ), "." ) );
   }
}


private void WhatIsChecked_Click(object sender, System.EventArgs e) {
    // Display in a message box all the items that are checked.

    // First show the index and check state of all selected items.
    foreach(int indexChecked in checkedListBox1.CheckedIndices) {
        // The indexChecked variable contains the index of the item.
        MessageBox.Show("Index#: " + indexChecked.ToString() + ", is checked. Checked state is:" +
                        checkedListBox1.GetItemCheckState(indexChecked).ToString() + ".");
    }

    // Next show the object title and check state for each item selected.
    foreach(object itemChecked in checkedListBox1.CheckedItems) {

        // Use the IndexOf method to get the index of an item.
        MessageBox.Show("Item with title: \"" + itemChecked.ToString() + 
                        "\", is checked. Checked state is: " + 
                        checkedListBox1.GetItemCheckState(checkedListBox1.Items.IndexOf(itemChecked)).ToString() + ".");
    }

}
Private Sub WhatIsChecked_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles WhatIsChecked.Click
    ' Display in a message box all the items that are checked.
    Dim indexChecked As Integer
    Dim itemChecked As Object
    Const quote As String = """"

    ' First show the index and check state of all selected items.
    For Each indexChecked In CheckedListBox1.CheckedIndices
        ' The indexChecked variable contains the index of the item.
        MessageBox.Show("Index#: " + indexChecked.ToString() + ", is checked. Checked state is:" + _
                        CheckedListBox1.GetItemCheckState(indexChecked).ToString() + ".")
    Next

    ' Next show the object title and check state for each item selected.
    For Each itemChecked In CheckedListBox1.CheckedItems

        ' Use the IndexOf method to get the index of an item.
        MessageBox.Show("Item with title: " + quote + itemChecked.ToString() + quote + _
                        ", is checked. Checked state is: " + _
                        CheckedListBox1.GetItemCheckState(CheckedListBox1.Items.IndexOf(itemChecked)).ToString() + ".")
    Next

End Sub

注釈

プロパティを使用すると、 CheckedListBoxコントロールに現在格納されている項目のリストへの参照を取得できます。 ItemsThe Items property enables you to obtain a reference to the list of items that are currently stored in a CheckedListBox control. この参照を使用すると、項目を追加したり、項目を削除したり、コレクション内の項目の数を取得したりできます。With this reference, you can add items, remove items, and obtain a count of the items in the collection. 項目コレクションで実行できるタスクの詳細については、クラスのCheckedListBox.ObjectCollectionリファレンストピックを参照してください。For more information on the tasks that can be performed with the item collection, see the CheckedListBox.ObjectCollection class reference topics.

適用対象

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