c# - TreeListView 在添加子项后以编程方式展开节点

Question

我使用此代码将子级添加到 BrightIdeasSoftware TreeListView 节点:

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

但是，当我尝试在上面的代码之后扩展分支时:

br.Expand();

我收到以下错误:

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.

对这个错误有什么帮助吗？

Answer 1

这对我有用:

treeListView1.Expand(br.Model);