private void AddExpandedHandlers(VisualTreeItem item)
{
foreach (var child in item.Children)
{
AddExpandedHandlers(child);
}
var tvi = GetTreeViewItem(item);
if (tvi != null && !_itemsBeingListened.ContainsKey(tvi))
{
_itemsBeingListened[tvi] = true;
tvi.Expanded += TreeViewItem_Expanded;
}
}
private TreeViewItem GetTreeViewItem(VisualTreeItem item)
{
return treeView.GetContainerFromItem(item);
}
