[Users] Error after Drag & Drop in LayerTree

[Sascha Müller]

Hi list,

I use:

GeoExt: 0.7
OpenLayers: 2.9
ExtJs: 3.2.1
GeoServer: 1.7.7

I Change the position of a layer in the tree. Afterwards I want to check 
the checkbox of the layer.
Then appears an error: "this.items.get(...).text' is null or no Object".

In LayerLegend.js

update: function() {
         var title = this.getLayerTitle(this.layerRecord);

=>   if (this.items.get(0).text !== title) {            // this is the 
row where the error comes from.
             // we need to update the title
             this.items.get(0).text = title;
         }

},

If I try to check a checkbox at a layer without Drag & Drop before, it 
works.
If I remove the Legend from the application, it works. I don't know, why the
item (the layer on the new position in the tree) no properties 'text' 
contains.

Maybe I miss something with the new legend in GeoExt 0.7.


My code looks like this:

treePanel
========
var treePanel = new Ext.tree.TreePanel({
                     id: 'lt',
                     title: 'Layer',
                     region: 'west',
                     loader: new Ext.tree.TreeLoader({
                         applyLoader: false
                     }),
                     root: {
                         nodeType: "async",
                         children: Ext.decode(treeConfig)
                     },
                     rootVisible: false,
                     lines: false,
                     enableDD: true,
                     split: true,
                     autoScroll: true,
                     collapsible: true,
                     bodyStyle: 'padding:5px;',
                     width: 200,
                     minSize: 200
});

legendPanel
==========
var legendPanel = new GeoExt.LegendPanel({
                 title      : "Legende",
                 autoScroll : true,
                 dynamic    : true,
                 showTitle  : true,
                 defaults   : {
                     labelCls          : 'legendLabel',
                     style               : 'padding:5px',
                     imageFormat       : 'image/gif',
                     useScaleParameter : false
                 },
                 bodyStyle  : "padding: 1px;",
                 filter     : function(record) {
                     return !record.get("layer").isBaseLayer;
                 }
             });

If I use Firefox, everything is ok.The error appears, but only in the 
console. With the IE8, there comes a Window with the error.

Thanks

Sascha