Unable to unbind event handlers set as options

[iangrainger]

I cannot call unbind for events whose handlers I added as options when creating an autocomplete widget. May be the same for other widgets, I've not tested.

​Reproduction

Workaround (as shown above) is to separately bind to the event, then unbind works.

[Scott González]

Callbacks are not bound as event handlers. Change the option to null if you want to remove the callback.

[iangrainger]

Replying to scott.gonzalez:

Callbacks are not bound as event handlers. Change the option to null if you want to remove the callback.

Ah, I see. Apologies.

I assume I missed this note in the documentation, then? Or is it too obvious?

[Scott González]

I'm sure we don't document it on every option, but there's nothing saying that the options actually bind an event that you can later unbind.

[iangrainger]

Replying to scott.gonzalez:

I'm sure we don't document it on every option, but there's nothing saying that the options actually bind an event that you can later unbind.

That's true - I don't want to be a pain, but it _could_ be confusing that its possible to modify behaviour in two different ways, by binding to events and by passing in callback functions.

Might it be worth a short note on the bind/unbind API reference noting that callbacks cannot be unbound, so others won't have the same confusion?

I'll go make a comment on ​unbind() to that effect.

[Scott González]

This has nothing to do with the way .unbind() is implemented and .unbind() shouldn't include information specific to jQuery UI. This is very similar to how the Ajax events work: you can provide a callback or bind an event, but they're not the same.