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POClearing eventListeners on a FileReference object
primarykey
Id
3057355
data
AcceptedAnswerId
3057698
AnswerCount
2
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2010-06-16T21:33:21.513
FavoriteCount
0
LastActivityDate
2013-08-23T08:36:14.980
LastEditDate
2010-06-16T22:22:37.703
LastEditorUserId
350326
OwnerUserId
350326
ParentId
0
PostTypeId
1
Score
0
ViewCount
743
LastEditorDisplayName
text
Body
I have a strange issue! I am trying to remove an event listener on a FileReference object by calling a function, but it seems not to be removed, and I do not understand why. Here is the code: <pre><code>private function clearFileUploadListeners(file:FileReference, index:String):void { var dispatchEvent:Function = function(event:Event):void { dispatch(event.type, event, index); }; file.removeEventListener(Event.COMPLETE, dispatchEvent); var bool:Boolean = file.hasEventListener(Event.COMPLETE); if (bool) trace("ERROR"); } </code></pre> When I run this code, the trace actually happens. I don't understand why this boolean returns true, when I just tried to remove the eventListener just above! I guess I am probably doing something really stupid because it seems like a strange error. I hope someone can please help me on this issue. EDIT: I believe it has to do with the fact that the dispatchEvent function is defined inside another function when I add the listener: <pre><code>private function upload(file:FileReference, index:String):void { var dispatchEvent:Function = function(event:Event):void { dispatch(event.type, event, index); }; file.addEventListener(Event.COMPLETE, dispatchEvent); } </code></pre> The problem is that I need to access this "index" variable from the listener, and I can't set it as a global variable as each file has it's own index and it's a burden if I have to extend each event class to keep track of the index (Event, ProgressEvent, ..). I hope someone can please help me on this. EDIT2: I actually found a temporary solution, I am not sure if it is the best! I put my removeListener method actually inside the upload method, but made it a variable. As AS3 allows dynamic object, I attached this method to one of my object, and so I just call the reference to the method when necessary. The event is actually removed. Is this a good solution please? Thank you very much, Rudy
Tags
<actionscript-3><actionscript><event-listener><filereference>
Title
Clearing eventListeners on a FileReference object
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1. PO
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PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USRudy
UserOwnerUserId
1. USRudy
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1. PO
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