提升事件TreeViewItem.MouseDoubleClickEvent

Question

我在TreeViewItem上升事件时遇到问题。我总是得到这个例外

  

无法将类型为“System.Windows.RoutedEventArgs”的对象强制转换为类型   'System.Windows.Input.MouseButtonEventArgs'

我的代码背后是异常。

private void LibraryTree_KeyDown(object sender, KeyEventArgs e)
{
    if (e.Key == Key.Return)
    {
        if (LibraryTree.SelectedItem == null) { return; }
        TreeViewItem tvi = (TreeViewItem)LibraryTree.SelectedItem;
        tvi.RaiseEvent(new RoutedEventArgs(TreeViewItem.MouseDoubleClickEvent));
    }
}

Answer 1

MouseDoubleClickEvent期望MouseButtonEventArgs如此引发事件：

tvi.RaiseEvent(new MouseButtonEventArgs(Mouse.PrimaryDevice, 0, MouseButton.Left)
                           { RoutedEvent = TreeViewItem.MouseDoubleClickEvent });