From your error message, the error is in the mapWidget.registerForEvent
call (not in the callback being passed as the argument) - the
MAP_EXTENTS_CHANGED event isn't registered on the 'mapWidget' object.
You should inspect the object with firebug to see what it is and that
might give you a hint as to why it got changed.
Mike
GordonL wrote:
Hi Mike,
so since the mapWidget changes - should I capture it again anew?
I get this error even if I use the following code:
mapWidget.registerForEvent(Fusion.Event.MAP_EXTENTS_CHANGED, alert("hi
there"));
Mike Adair wrote:
Just a guess but it sounds like your mapWidget object changes in between
calls.
Mike
GordonL wrote:
Hi, I am just trying to grab the current scale when the user zooms in and
out
- but after the code runs once, successfully, to throws the following
error:
Message: 'this.events[...][...]' is null or not an object
Line: 110
Char: 13
Code: 0
URI: http://localhost/mapguide2010/fusion/lib/EventMgr.js
the code:
mapWidget.registerForEvent(Fusion.Event.MAP_EXTENTS_CHANGED,
alert(mapWidget.getScale()));
the code works great, once.
--
Michael Adair
Senior Software Architect
DM Solutions Group Inc.
Office: (613) 565-5056 x26
mad...@dmsolutions.ca
http://www.dmsolutions.ca
http://research.dmsolutions.ca
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--
Michael Adair
Senior Software Architect
DM Solutions Group Inc.
Office: (613) 565-5056 x26
mad...@dmsolutions.ca
http://www.dmsolutions.ca
http://research.dmsolutions.ca
_______________________________________________
mapguide-users mailing list
mapguide-users@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/mapguide-users
