I think there’s confusion over what a popup host is. A popup host is where you would add an IPopUp. UIUtils.findPopUpHost(myComp as IUIBase) finds the closest ancestor for myComp to which a popup can be added. These lines from ComboBoxView demonstrate the usage:
var popupHost:IPopUpHost = UIUtils.findPopUpHost(_strand as IUIBase); popupHost.addElement(list); Regarding Prashant’s issue, an application is usually in itself an IPopUpHost so there’s no need to use that function on an app. From: piotrz<mailto:piotrzarzyck...@gmail.com> Sent: Tuesday, July 18, 2017 7:31 AM To: dev@flex.apache.org<mailto:dev@flex.apache.org> Subject: [FlexJS] findPopupHost issue Hi Team, Prashant on users list raised an issue with UIUtils.findPopUpHost(this as IUIBase) [1]. I did quick look into that and I think we should have in findPopUpHost(start:IPopupHost) instead findPopUpHost(start:IUIBase) or Am I miss something ? [1] http://apache-flex-users.2333346.n4.nabble.com/FlexJS-findPopUpHost-Issue-td15474.html Thanks, Piotr ----- Apache Flex PMC piotrzarzyck...@gmail.com -- View this message in context: http://apache-flex-development.2333347.n4.nabble.com/FlexJS-findPopupHost-issue-tp63362.html Sent from the Apache Flex Development mailing list archive at Nabble.com.