//E_list是s:DropDownList E_list.openDropDown(); E_list.callLater(alert); private function alert():void { Alert.show("Item(s) already used by another effect"); }
flex的dropdownlist在alert .show之后无法关闭下拉框的解决办法
参考:https://issues.apache.org/jira/browse/FLEX-20103
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