CheckedListBox.CheckedIndices プロパティ

定義

この CheckedListBox 内でチェックされているインデックスのコレクション。Collection of checked indexes in this CheckedListBox.

public:
 property System::Windows::Forms::CheckedListBox::CheckedIndexCollection ^ CheckedIndices { System::Windows::Forms::CheckedListBox::CheckedIndexCollection ^ get(); };
[System.ComponentModel.Browsable(false)]
public System.Windows.Forms.CheckedListBox.CheckedIndexCollection CheckedIndices { get; }
[<System.ComponentModel.Browsable(false)>]
member this.CheckedIndices : System.Windows.Forms.CheckedListBox.CheckedIndexCollection
Public ReadOnly Property CheckedIndices As CheckedListBox.CheckedIndexCollection

プロパティ値

CheckedListBox.CheckedIndexCollection

CheckedListBox.CheckedIndexCollectionCheckedListBox コレクションです。The CheckedListBox.CheckedIndexCollection collection for the CheckedListBox.

属性

次の例では、内のチェックされた項目を列挙し CheckedListBox.CheckedIndexCollection 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、プロパティを使用してを取得する方法と、プロパティを使用してを取得する方法を示し CheckedIndices CheckedListBox.CheckedIndexCollection CheckedItems CheckedListBox.CheckedItemCollection ます。The example 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、メソッドを使用して、 GetItemCheckState CheckState 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番目のループでは、も使用し GetItemCheckState ますが、メソッドを使用して ListBox.ObjectCollection.IndexOf 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

チェックされたインデックスのコレクションは、コントロール内のすべての項目のコレクション内にあるインデックスのサブセットです CheckedListBoxThe collection of checked indexes is a subset of the indexes into the collection of all items in the CheckedListBox control. これらのインデックスは、チェックされた状態または未確定の状態の項目を指定します。These indexes specify items in a checked or indeterminate state.

適用対象

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