CheckedListBox.CheckedIndices Propriété
Définition
Important
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Collection d'index activés figurant dans ce 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.CheckedIndexCollectionPublic ReadOnly Property CheckedIndices As CheckedListBox.CheckedIndexCollectionValeur de propriété
Collection CheckedListBox.CheckedIndexCollection pour le CheckedListBox.
- Attributs
Exemples
L’exemple suivant énumère les éléments archivés dans pour CheckedListBox.CheckedIndexCollection voir dans quel état de vérification se trouve un élément. L’exemple montre comment utiliser la CheckedIndices propriété pour obtenir le CheckedListBox.CheckedIndexCollection, et la CheckedItems propriété pour obtenir le CheckedListBox.CheckedItemCollection.
La première boucle utilise la GetItemCheckState méthode pour obtenir le CheckState de chaque élément vérifié, compte tenu de l’index de l’élément. La deuxième boucle utilise GetItemCheckStateégalement , mais utilise la ListBox.ObjectCollection.IndexOf méthode pour récupérer l’index de l’élément.
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
Remarques
La collection d’index vérifiés est un sous-ensemble des index dans la collection de tous les éléments du CheckedListBox contrôle. Ces index spécifient des éléments dans un état vérifié ou indéterminé.
