[Users] gx_layercontainer filter:

[Andreas Hocevar]

Hey-

your code should work with a current trunk version of GeoExt, but not 
with GeoExt 0.6. Which version are you using?

Regards,
Andreas.

Brian Marble wrote:
> Hey,
>
> I am trying to filter a gx_layercontainer (see below). No matter what I do
> all of my map.layers show in this branch of the tree. I want to have more
> control over the contents of all branches of the tree. It looks like the
> filter function just needs to be overridden on my part but I am unable to
> make it work as below.
>
> My test code below is taken from
> http://dev.geoext.org/trunk/geoext/examples/tree.html 
>
> Can anyone point out my oversights?
>
> Thanks,
> Brian
>
> ar options = {
>         projection: new OpenLayers.Projection("EPSG:900913"),
>         displayProjection: new OpenLayers.Projection("EPSG:4326"),
>         theme: null,
>         units: "m",
>         maxResolution: 156543.0339,
>         maxExtent: new OpenLayers.Bounds(-20037508.34, -20037508.34,
> 20037508.34, 20037508.34)
> //        allOverlays: true
>     };
>     	
> map = new OpenLayers.Map('mapContainer', options);
>
> var treeConfig = new OpenLayers.Format.JSON().write([{
>         nodeType: "gx_baselayercontainer",
>         text: "Base Layers"
>     }, {
>         nodeType: "gx_overlaylayercontainer",
>         text: "Over Layers",
>         expanded: false,
>         loader: {
> 	}
>     }, {
>         nodeType: "gx_layercontainer",
>         text: "Special Layers",
>         expanded: false,
>         loader: {
> 		filter: function(record) {
> 		      var layer = record.get("layer");
> //	     	 	return (!layer.isBaseLayer && layer.name == "2000
> Census - Population (TC)");
> 	     		return !layer.isBaseLayer;
> 	     }
> 	     
> 		} 
> 	}
>     ], true);
>
> var tree = new Ext.tree.TreePanel({
>         border: true,
>         region: "west",
>         title: "Layers",
>         width: 200,
>         split: true,
>         collapsible: true,
>         collapseMode: "mini",
>         autoScroll: true,
>         loader: new Ext.tree.TreeLoader({
>             applyLoader: false
>         }),
>
>         root: {
>             nodeType: "async",
>             children: Ext.decode(treeConfig)
>         },
>         listeners: {
>             "insert": registerRadio,
>             "append": registerRadio
>         },
>         rootVisible: false,
>         lines: false,
>         bbar: [{
>             text: "Show/Edit Tree Config",
>             handler: function() {
>                 treeConfigWin.show();
>                 Ext.getCmp("treeconfig").setValue(treeConfig);
>             }
>         }]
>     });
>
> ______________________________________________
> Brian Marble
> LandEZ Corp.    
> W - 435 787 9003
> C - 435 881 3117
> F - 435 787 9004
> BrianMarble at LandEZ.com
>
>
>
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>   


-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.