[Users] How to add a tree to a viewport?

[Ryan Williams]

There's a demo on the GeoExt site that's really similar to your question,
http://dev.geoext.org/trunk/geoext/examples/mappanel-viewport.js

Very near the top of that javascript code, above the 
"Ext.onReady(function() ", they define var mapPanel.  That should take 
care of mapPanel not being defined.

- Ryan

On 9/1/2010 2:19 PM, Robert Buckley wrote:
> Hi,
>
> I´ve been hitting my head against a wall all evening trying to get a treepanel
> to work in a viewport.
>
> I always get the error message Mappanel not defined!!...this is because mapPanel
> is declared underneath the tree, but I can´t put the tree under the viewport
> either.
>
> It´s late and i´m lost. Can anyone help me out?
>
> .....
>
>
> this rest of the code just defines the grids and the layers.
>
>
>
> .....
>      var tree = new Ext.tree.TreePanel({
>      region: "west",
>      title: "Map Layers",
>      width: 200,
>      autoScroll: true,
>      enableDD: true,
>      lines: false,
>      rootVisible: false,
>      root: new GeoExt.tree.LayerContainer({
>      layerStore: mapPanel.layers,
>      expanded: true
>      })
>
> });
>
>      new Ext.Viewport({
>          layout: "border",
>          items: [{
>              region: "north",
>              contentEl: "title",
>              height: 50
>          }, {
>              region: "center",
>              id: "mappanel",
>              title: "Map",
>              xtype: "gx_mappanel",
>              map: map,
>              layers: [gsat, mapnik,layer_wea, layer_zgbgrenze],
>              minScale: 500000,
>              maxScale: 100000,
>              numZoomLevels: 2,
>               center: [1169180, 6843865],
>                zoom: 9,
>              split: true
>          }, {
>              region: "west",
>              title: "Karteninhalt",
>              items:[],
>              width: 200,
>              split: true
>          }, {
>              region: "east",
>              split: true,
>              collapsed:true,
>              collapsible:true,
>              xtype: 'tabpanel',
>              title: 'WEA',
>              width: 500,
>              items: [
>              attribgridPanel_wea,attribgridPanel_gas,attribgridPanel_wasser
>              ]
>
>          }]
>      });
>
>     var mapPanel = Ext.getCmp("mappanel");
>
> });
>
>
> Thanks,
>
> Rob
>
>
>
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>    

-- 
Ryan Williams, GISP
GIS Analyst / Programmer
PAQ Interactive Inc.
107 S State St., Suite 300
Monticello, IL 61856-1968

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