- 
    Type:Bug 
- 
    Resolution: Fixed
- 
    Priority:Normal 
- 
    Affects Version/s: 8.5.2.1
- 
    Component/s: None
- 
    Security Level: Jimmy
- 
    None
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        ZK 8.6.0 S2
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        None
Steps to Reproduce
    <bandbox id="box">
        <bandpopup>
            pp
        </bandpopup>
    </bandbox>
    <button label="open state" onClick='box.open();Clients.showNotification(box.isOpen()+"")'/>
1. click the button to open the bandbox
Current Result
it shows false
Expected Result
it shows true
Debug Information
- open() doesn't change member field _open but setOpen() does which is inconsistent and confuses users.
