This is probably very old, and maybe someone remembers.

A treeview will select the current node but will not register a nodeclick if it's clicked anywhere to the right of the node's caption. There was a thought that this may be solved by simply adding spaces, but then it would cause the horizontal scrollbar to appear (which we don't want).

The treeview used in Windows Explorer, however, behaves differently - you click to the right and the node expands, the right pane is refreshed etc. So... is the treeview we know different, obsolete, buggy, or we just don't know how to get the desired behavior?