I have a THTMLTreeView with multiple root level nodes. I can collapse all the nodes except the first one.
Example:
root node 1
- child node 1
- child node 2
- child node 3
root node 2
- child node A
- child node B
- child node C
root node 3
- child node I
- child node II
- child node III
If I loop thru each of the root nodes and issue the rootnode.Collapse(true) for each root node, all root nodes are collapsed except root node 1.
Result:
root node 1
- child node 1
- child node 2
- child node 3
root node 2
root node 3
THTMLTreeView 1.5.3.1
Delphi 10.3.3