How to expand a treeview node by code?

[spebola]

I have a form with a treeview and a listview side by side. When the user selects a row in the listview, I want to expand the corresponding node in the treeview. I have tried the following code but it returns an exception (out of range):

Dim tvwIndex as Integer = lvw.FocusedItem.Index
tvw.Nodes(tvwIndex).Expand()

This code is in the Click event for the listview.

Any help would be appreciated.

 

[divil]

You can't assume the index will be the same. Indexes start at 0 for each group of nodes under a parent. One way of doing this would be to assign a corresponding treenode to the Tag property of a ListViewItem, then casting it when required:

DirectCast(lvw.FocusedItem.Tag, TreeNode).Expand()

 

[spebola]

I finally got back to this project and tried your suggestion and it worked perfectly.

Thanks divil!!!