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POHow do I cancel an AMF Call with NetConnection?
 

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  1. POHow do I cancel an AMF Call with NetConnection?
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    <p>Let's say that I have a NetConnection Object inside a Singleton Pattern that is shared with all Data Access Object classes throughout all my application. Now, you went on a screen and asked to load 5 thousands of records because you want to search for some mistake or whatever. But now you just realized that you're in the wrong screen and you actually wants 5 thousand of records from another "Entity". How to prevent you from having to wait almost 2 minutes until the data gets here so you can move on to another Screen and ask for some different data? I tried using ESC button as a key caller to the <code>NetConnection.close()</code> event, but it actually doesn't work. It just dispatch an empty event and the call still returns. I know that I can't ask the server not to keep doing his job, but I wanna know how I can make sure that after you pressed ESC or something like that, the ActionScript won't bother with that specific call anymore and you can move on with your life. And, when the server respond to that call, in the background, I'm going to throw it away because you already agreed to cancel it.</p> <p>Ps.: I don't have any doubt on how to listen to ESC button and call some method through it, I just want to know what to call once the user decided that he doesn't want to receive that data anymore and he/she wants to move on without having to close the App and open again.</p> <p>Edit: </p> <p>I tried to destroy the Responder object after making the call, but it didn't work.</p> <pre><code> public function call(command:String, f:Function, fault:Function, ...parameters):void{ var r:Responder = new Responder(f, fault); this._Responder = r; if(parameters.length == 0) GATEWAY.call(command, _Responder); else GATEWAY.call(command, _Responder, parameters); } public function close():void{ _Responder = new Responder(function(obj:Object):void{}, function(obj:Object):void{}); //_Responder = null; trace("Canceled"); } </code></pre> <p>with the code described up here, I stopped making calls to <code>NetConnection::call</code> and started to call the "Call Function" that I wrote. So this function would build a Responder that will be in the class scope so I could access it even after the call has been made and the ESC button would call the "Close" function. I tried setting it to null and re-building it. It didn't work. I think after the NetConnection makes the call, the Responder cannot be changed. </p>
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    1. PTQuestion
    1. USMarco Aurélio Deleu
    1. USMarco Aurélio Deleu
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    1. COIs there a reason you have to use the singleton connection or some benefit you're looking to gain from this? Regardless my thought is to setup a cancel method in the singleton that you call, in the cancel method you create a new NetConnection and deactivate any handlers you had in place (honestly haven't used NetConnection directly myself much but we've used the AbstractService RPC classes and IResponder implementing objects to achieve similar tasks, though generally we actually have an instance of the service class for each of our Java services, not each method but each service class).
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      1. POHow do I cancel an AMF Call with NetConnection?
      1. USshaunhusain
    2. COI tried calling `NetConnection::close`, rebuilding the `NetConnection` class and setting the object to null. I also tried what I described in the edit just now, that was setting null not only to the NetConnection Object, but also for the Responder Object. Nothing seems to work.
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      1. POHow do I cancel an AMF Call with NetConnection?
      1. USMarco Aurélio Deleu
 

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