TreeListView编程扩展节点添加子

Question

后，我用这个代码到一个子项添加到BrightIdeasSoftware TreeListView节点：

var br = treeListView1.TreeModel.GetBranch(treeListView1.SelectedObject); 
((Node)br.Model).Children.Add(new Node(...)); 
treeListView1.RefreshObject(br.Model); 

然而，当我试着上面的代码后，展开分支：

br.Expand(); 

我得到以下错误：

Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection.

与此错误任何帮助吗？

Answer 1

这为我工作：

treeListView1.Expand(br.Model);