If you want to use GeoExt widgets BaseLayerContainer and OverlayLayerContainer in the same tree, like this:
GeoExt BaseLayerContainer and OverlayLayerContainer
var layerRoot = new Ext.tree.TreeNode({
text: "All Layers",
expanded: true
});
layerRoot.appendChild(new GeoExt.tree.BaseLayerContainer({
text: "Base Layers",
map: map,
expanded: true
}));
layerRoot.appendChild(new GeoExt.tree.OverlayLayerContainer({
text: "Overlays",
map: map,
expanded: true
}));
var layerTree = new Ext.tree.TreePanel({
title: "Map Layers",
root: layerRoot,
enableDD: true,
collapsible: true,
height: 200,
expanded: true
});
GeoExt is now at 0.5RC1 and it is rather good!
thinkwhere 
You are my idol, hours and hours thinking in what fails in the GeoExt´s example and know wiht a few lines, all working ok. How is posible to make a official tutorial so complicated?
Thaks
Hi,
Your blog is really very helpful. I am a newbee in GIS development.
I am facing a problem regarding GeoExt
root: new GeoExt.tree.BaseLayerContainer({
layerStore: mapPanel.layers,
expanded: true
}),
root: new GeoExt.tree.OverlayLayerContainer({
layerStore: mapPanel.layers,
expanded: true
}),
rootVisible: true,
lines: true,
I am facing problem regarding making group in a tree.
I don’t know what ‘root’ is doing here. So, using it both the cases. But I get only the ‘Overlays’ as group. ‘Base Layers’ as a group or individually are not visible any more.
But I need both of them visible as a group in the tree.
I followed your tutorial of this section. But may that doesn’t fit with my environment.
Can you please help me in this regard?
how can we add GeoExt group layer under allLayers……..i have a problem regarding group layer lengends
i f love ya