TreeView.AfterSelect 事件
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
發生於選取樹狀節點之後。
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 事件類型
範例
下列程式碼範例示範如何使用 TreeViewAction 列舉。 若要執行此範例，請將下列程式碼貼到包含 TreeView 名為 TreeView1 之控制項的表單中。 這個範例會要求 TreeView1 填入專案，而且 AfterSelect 事件會連接到範例中定義的事件處理常式。
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
備註
取消選取節點時，不會發生此事件。 若要偵測選取範圍是否已清除，您可以測試 TreeNode.IsSelected 屬性。
如需處理事件的詳細資訊，請參閱 處理和引發事件。
