TreeViewItem.Collapsed Kejadian

Definisi

Ruang nama:

System.Windows.Controls

Rakitan:

PresentationFramework.dll

Terjadi ketika IsExpanded properti berubah dari true ke false.

public:
 event System::Windows::RoutedEventHandler ^ Collapsed;

public event System.Windows.RoutedEventHandler Collapsed;

member this.Collapsed : System.Windows.RoutedEventHandler 

Public Custom Event Collapsed As RoutedEventHandler 

Jenis Acara

RoutedEventHandler

Contoh

Contoh berikut menunjukkan cara menetapkan penanganan aktivitas untuk peristiwa ke CollapsedTreeViewItem,dan cara menentukan penanganan aktivitas.

<TreeViewItem Header="Employee1"
              Name="Employee1Data" 
              IsExpanded="True" 
              Collapsed="OnCollapsed" 
              Expanded="OnExpanded">
  <TreeViewItem Header="Work Days" 
                Name="EmployeeWorkDays"
                IsSelected="True">
    <TreeViewItem Header="Tuesday" />
    <TreeViewItem Header="Friday"/>
  </TreeViewItem>
</TreeViewItem>
<TreeViewItem Header="Employee2" 
              Name="Employee2Data">
  <TreeViewItem Header="Work Days" 
                Name="emp2WorkDays" 
                Selected="GetSchedule"
                Unselected="SetSchedule">
    <TreeViewItem Header="Monday" />
    <TreeViewItem Header="Wednesday"/>
  </TreeViewItem>
</TreeViewItem>

private void OnCollapsed(object sender, RoutedEventArgs e)
{
    //Perform actions when the TreeViewItem is collapsed
}

Private Sub OnCollapsed(ByVal sender As Object, ByVal e As RoutedEventArgs)
    'Perform actions when the TreeViewItem is collapsed
End Sub

Keterangan

Peristiwa ini terjadi ketika diciutkan TreeViewItem sehingga elemen anak disembunyikan.

Informasi Peristiwa Yang Dirutekan

Bidang pengidentifikasi	CollapsedEvent
Strategi perutean	Menggelegak
Delegasikan	RoutedEventHandler

Lihat juga

• IsExpanded
• Collapsed