static void EnableMultiSelectChanged(DependencyObject s, DependencyPropertyChangedEventArgs args)
{
TreeListView tree = (TreeListView)s;
var wasEnable = (bool)args.OldValue;
var isEnabled = (bool)args.NewValue;
if (wasEnable)
{
tree.RemoveHandler(TreeViewItem.MouseDownEvent, new MouseButtonEventHandler(ItemClicked));
tree.RemoveHandler(TreeViewItem.MouseDoubleClickEvent, new MouseButtonEventHandler(MouseDoubleClick));
tree.RemoveHandler(TreeView.KeyDownEvent, new KeyEventHandler(KeyDown));
tree.RemoveHandler(TreeView.KeyUpEvent, new KeyEventHandler(KeyUp));
}
if (isEnabled)
{
SelectedTreeItems = new List <object>();
tree.AddHandler(TreeViewItem.MouseDownEvent, new MouseButtonEventHandler(ItemClicked), true);
tree.AddHandler(TreeViewItem.MouseDoubleClickEvent, new MouseButtonEventHandler(MouseDoubleClick), true);
tree.AddHandler(TreeView.KeyDownEvent, new KeyEventHandler(KeyDown));
tree.AddHandler(TreeView.KeyUpEvent, new KeyEventHandler(KeyUp));
}
}
private static void UpdateAnchorAndActionItem(TreeListView tree, TreeListViewItem item)
{
SetAnchorItem(tree, item);
}
private static void MakeToggleSelection(TreeListView tree, TreeListViewItem item)
{
SetIsSelected(item, !GetIsSelected(item));
UpdateAnchorAndActionItem(tree, item);
}
public static List <TreeListViewItem> GetSelectedTreeViewItems(TreeListView tree)
{
return(GetExpandedTreeViewItems(tree).Where(i => GetIsSelected(i)).ToList());
}