Esempi in C# (CSharp) per VisualTreeExtensions.GetTemplatedAncestor

Esempio n. 1

            public void TreeView_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
            {
                // 注意，这里的sender是TreeView
                // 我们需要从e.OriginalSource拿到TreeViewItem
                var item = VisualTreeExtensions.GetTemplatedAncestor <TreeViewItem>(e.OriginalSource as FrameworkElement);

                if (item != null)
                {
                    item.IsSelected = true;
                }
            }