Hi, what version of GeoExt are you using? Please upgrade to 1.1 if you're not running it already.
This was fixed with: http://trac.geoext.org/ticket/451 Best regards, Bart -- Bart van den Eijnden OpenGeo - http://opengeo.org Expert service straight from the developers. On Mar 5, 2012, at 5:12 PM, frank wrote: > Dear list > > I'm using a self-made function for clearing all layers in my map and adding a > stored set of predefined layers. > In this routine i call map.removeLayer() for all non-base layers, before I > add the new layer set. > > However, after having removed the layers I get an exception from > GeoExt.VectorLegend: > Uncaught TypeError: Cannot read property 'map' of null > GeoExt.VectorLegend.Ext.extend.onMapZoomVectorLegend.js:261 > OpenLayers.Events.OpenLayers.Class.triggerEventEvents.js:798 > OpenLayers.Map.OpenLayers.Class.moveToMap.js:1890 > OpenLayers.Map.OpenLayers.Class.setCenterMap.js:1662 > OpenLayers.Control.Navigation.OpenLayers.Class.wheelChangeNavigation.js:279 > OpenLayers.Control.Navigation.OpenLayers.Class.wheelDownNavigation.js:303 > OpenLayers.Handler.OpenLayers.Class.callbackHandler.js:205 > OpenLayers.Handler.MouseWheel.OpenLayers.Class.wheelZoomMouseWheel.js:229 > OpenLayers.Handler.MouseWheel.OpenLayers.Class.onWheelEventMouseWheel.js:191 > (anonymous function) > To the inner level this maps down to the function > onMapZoom: function() { > this.setCurrentScaleDenominator( > this.layer.map.getScale() > ); > }, > And by inspection this.layer is undefined. > How can this be? > Removing the layer with any combination of (one or both) > map.removeLayer(layer) and > layer.destroy() > gives the same result. > best regards, > Frank > > > _______________________________________________ > Users mailing list > Users@geoext.org > http://www.geoext.org/cgi-bin/mailman/listinfo/users
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