void Sort <T>(T rootItem, Comparison <TreeViewItem> func, Comparison <int> intfunc) where T : TreeViewItem
{
rootItem.children.Sort(func);
Stack <TreeViewItem> itemstack = StackPool <TreeViewItem> .Get();
foreach (var child in rootItem.children)
{
itemstack.Push(child);
}
while (itemstack.Count > 0)
{
var item = itemstack.Pop();
if (_treeView.IsExpanded(item.id) && item.children.Count > 0 && item.children[0] != null)
{
foreach (var child in item.children)
{
itemstack.Push(child);
}
item.children.Sort(func);
}
}
StackPool <TreeViewItem> .Release(itemstack);
_model.Sort(intfunc);
}
