[Users] Error while try to display LegendGraphics in Layer Tree [SEC=Unclassified]

[Miles Jordan]

Jehanzeb Orakzai wrote:
> Hi Miles,
>
> Thank you for the reply.
>
> I have tried this also, but no luck. If u have a working example can
> you post it please.
>
>
> Thank you,

This works for me with Ext 3.0, 3.1 and 3.2.1.

createIconNode = function(attr) {
  var layer_name = ....;
  attr.icon = '/servicesproxy/geoserver/wms?REQUEST=GetLegendGraphic&VERSION=1.0.0&FORMAT=image/png&WIDTH=20&HEIGHT=20&LAYER=' + layer_name;
  return GeoExt.tree.LayerLoader.prototype.createNode.call(this, attr);
};

And then the treepanel looks like:

{
  xtype: "treepanel",
  loader: new Ext.tree.TreeLoader({
    applyLoader: false
  }),
  root: {
    nodeType: "async",
    children: {
      nodeType: "gx_overlaylayercontainer",
      text: 'Some Layers',
      layerStore: myLayerStore,
      leaf: false,
      expanded: true,
      loader: {
        createNode: createIconNode
      }
    }
  }
}


Regards,

Miles


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