public void SetTreeNodes() { Tree.Nodes = nodes; nodes.BeginUpdate(); var test_item = new TreeViewItem("added"); var test_node = new TreeNode<TreeViewItem>(test_item); nodes.Add(test_node); nodes[1].IsVisible = false; nodes[2].Nodes[1].IsVisible = false; nodes.EndUpdate(); }
public void AddNodes() { var test_item = new TreeViewItem("New node"); var test_node = new TreeNode<TreeViewItem>(test_item); nodes.Add(test_node); }
static public ObservableList<TreeNode<TreeViewItem>> GenerateTreeNodes(List<int> items, string nameStartsWith = "Node ", bool isExpanded = true) { return Enumerable.Range(1, items[0]).Select(x => { var item_name = nameStartsWith + x; var item = new TreeViewItem(item_name); var nodes = items.Count > 1 ? GenerateTreeNodes(items.GetRange(1, items.Count - 1), item_name + " - ", isExpanded) : null; return new TreeNode<TreeViewItem>(item, nodes, isExpanded); }).ToObservableList(); }