TreeListView 在添加子项后以编程方式展开节点
TreeListView programmatically expand node after adding child
我使用此代码将子节点添加到 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？
这对我有用：
treeListView1.Expand(br.Model);
我使用此代码将子节点添加到 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？
这对我有用：
treeListView1.Expand(br.Model);