Rebinding event handler function. Is it possible?

[lveronese]

Hi, I'm asking if it is possibile to rebind an event handler function after a component has been constructed.
In my example I need to rebind the recordDoubleClick event of a grid to a different callback function if some condition occurs.
Is it possibile? What is the correct syntax for doing so?

Thank you.

[Blama]

Hi lveronese,

I never did this, but I think it is possible. In SmartGWT you get a com.google.gwt.event.shared.HandlerRegistration that has a removeHandler as return value for addDoubleClickHandler.
I assume that in SmartClient there will be a similar functionality. Otherwise you could make you eventHandler handle both cases with an if, couldn't you?

Best regards
Blama

[lveronese]

Well, it's not that simple but I can refactor the code to avoid the rebinding. Anyway in the doc I didn't find a way to register or unregister event handlers which is normally a common feature.
This was the reason I asked.
Thank you.

[claudiobosticco]

I don't know if there's a better way, but using SmartClient I would simply do:

grid.addProperties({
  recordDoubleClick:function(viewer, record, recordNum, field, fieldNum, value, rawValue){
    // a new callback
  }
});

or, as a string method:

grid.addProperties({
  recordDoubleClick:"aNewCallback()"
});

[lveronese]

Thank you. I refactored the code but just in case I need this in the future it may come handy.