[OpenLayers-Users] How to handle events

[Arnd Wippermann]

Hello Alan,
 
i'm using in my application an own layercontrol etc. and i don't use
OpenLayers-events. To create a new layer, I have to describe the parameter
and then add the layer with a button click. To set an OLLayer visible or not
visible, I use the onclick-event of the checkbox-element (<input
type="checkbox" name="iOLVisi" onclick="setVisi(' + i + ', this.checked);"
checked/>). With Markers I have no experience, but I think, it's the same.
 
Mit freundlichen Grüssen

Arnd Wippermann


http://gis.ibbeck.de/ginfo/ibbOLClient/OpenLayersClient.html?KARTE=1 (this
one uses popup windows as layercontrol, etc.)
http://gis.ibbeck.de/pinguinale/

  _____  

Von: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] Im
Auftrag von Alan Underwood
Gesendet: Mittwoch, 25. Oktober 2006 18:14
An: users at openlayers.org
Betreff: [OpenLayers-Users] How to handle events


I was wondering (=desperately hoping) that someone might be able to describe
how the event handling is supposed to be used in the openlayers code. I am
trying to write my own control for creating layers and markers and, as you
would expect, it needs to use a lot of event handling. I've looked at the
LayerSwitcher control which sometimes uses Events.register on the map object
and sometimes uses Event.observe and I looked at PanZoomBar which uses
Events.register on both the map object and on some Events objects it defines
itself. I got quite confused. When is Events.register supposed to be used
rather that Event.observe and vice-versa.

Any guidance?

Alan

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