Hi Gaston,
AFAICT not on the GeoExt2 side.
The example you mention always has at least one base layer actoive, but
I guess you mean at least one overlay is visible right?
If that is the case, check the events of OpenLayers.Layer objects over
at
http://dev.openlayers.org/releases/OpenLayers-2.12/doc/apidocs/files/OpenLayers/Layer-js.html#OpenLayers.Layer.events.
Hope that helps.
Regards,
Marc
On 27.12.2012 01:30, Gaston Lucero wrote:
Hi, in the example
http://geoext.github.com/geoext2/examples/tree/tree.html
The layers are not mutually exclusive since it allows not have any
selected layer.
Is there a way to always leave one layer selected?
Thanks
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