probably a very simple question
I am using a SplitContainer with four vertical panels. The default behavior is that the handles (little arrows) are always visible even when the panel is "minimized" with only one center little arrow shown as handle.. (see attached image).
If I use panel.collapsed = true, the panel is masked but the handle is not shown anymore and the user cannot act on it .
How can I do to programmatically mimic the standard interactive behavior and manipulate the three arrows ?