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Editorial Team
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Asked: 2026-05-11T16:48:12+00:00

I am working on a Flash file upload widget, and I want it to

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I am working on a Flash file upload widget, and I want it to upload one file at a time. In my upload function, I currently have a FileReferenceList, and I am looping through it, calling upload on each one. However, since FileReference.upload is non-blocking, all of the uploads are going simultaneously.

Is it possible to make the uplaod function block? Or do I need to chain the uploads together, by registering an event to upload the next one when the first one’s Event.COMPLETE event fires?

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1 Answer

  1. Editorial Team

    No, you can’t generally do that with AS3, you have to manage the “asynchronous” requests through chaining.

    I would usually have my list of files and upload one, catching the complete event and then do another. Same principle applies for downloading or retrieving files with URLLoader.

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