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TreeView.AfterSelect Kejadian

  • Referensi

Definisi

Ruang nama:
System.Windows.Forms
Rakitan:
System.Windows.Forms.dll

Terjadi setelah simpul pohon dipilih.

public:
 event System::Windows::Forms::TreeViewEventHandler ^ AfterSelect;
public event System.Windows.Forms.TreeViewEventHandler AfterSelect;
public event System.Windows.Forms.TreeViewEventHandler? AfterSelect;
member this.AfterSelect : System.Windows.Forms.TreeViewEventHandler 
Public Custom Event AfterSelect As TreeViewEventHandler

Jenis Acara

TreeViewEventHandler

Contoh

Contoh kode berikut menunjukkan cara menggunakan TreeViewAction enumerasi. Untuk menjalankan contoh ini, tempelkan kode berikut dalam formulir yang berisi TreeView kontrol bernama TreeView1. Contoh ini mengharuskan item TreeView1 diisi dengan item dan AfterSelect peristiwa tersambung ke penanganan aktivitas yang ditentukan dalam sampel.

private:
   // Handle the After_Select event.
   void TreeView1_AfterSelect( System::Object^ /*sender*/, System::Windows::Forms::TreeViewEventArgs^ e )
   {
      
      // Vary the response depending on which TreeViewAction
      // triggered the event. 
      switch ( (e->Action) )
      {
         case TreeViewAction::ByKeyboard:
            MessageBox::Show( "You like the keyboard!" );
            break;

         case TreeViewAction::ByMouse:
            MessageBox::Show( "You like the mouse!" );
            break;
      }
   }

// Handle the After_Select event.
private void TreeView1_AfterSelect(System.Object sender, 
    System.Windows.Forms.TreeViewEventArgs e)
{

    // Vary the response depending on which TreeViewAction
    // triggered the event. 
    switch((e.Action))
    {
        case TreeViewAction.ByKeyboard:
            MessageBox.Show("You like the keyboard!");
            break;
        case TreeViewAction.ByMouse:
            MessageBox.Show("You like the mouse!");
            break;
    }
}

' Handle the After_Select event.
Private Sub TreeView1_AfterSelect(ByVal sender As System.Object, _
    ByVal e As System.Windows.Forms.TreeViewEventArgs) _
        Handles TreeView1.AfterSelect

    ' Vary the response depending on which TreeViewAction
    ' triggered the event. 
    Select Case (e.Action)
        Case TreeViewAction.ByKeyboard
            MessageBox.Show("You like the keyboard!")
        Case TreeViewAction.ByMouse
            MessageBox.Show("You like the mouse!")
    End Select
End Sub

Keterangan

Kejadian ini tidak terjadi ketika simpul tidak dipilih. Untuk mendeteksi apakah pilihan dibersihkan, Anda dapat menguji TreeNode.IsSelected properti .

Untuk informasi selengkapnya tentang menangani peristiwa, lihat Menangani dan Menaikkan Peristiwa.

Berlaku untuk

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