[Users] GeoExt.tree problem

[brad]

Andreas,

Ok I understand. I currently have a loader wheel running using
loadstart/loadend but I would like to control the icon at the tree node. I
have found that you can change the default image at the node level with
iconCls: 'my image class'. However, I can't figure out how to change the
className under program control. 

For example, I can place a listener on the treePanel which allows me to
interrogate the node selected ('checkchange':function(node)(...)) whenever a
checkbox is clicked. However, inside this function when I look at the node's
iconCls its 'undefined' and yet there is an iconCls set for each node in the
tree - either the default one or one that I set. So without access to the
iconCls for a node I can't see how I can use the loadstart/Loadend to
control the node's image className?

There must be something I'm missing here???

Cheers, Brad....

-----Original Message-----
From: andreas.hocevar at gmail.com [mailto:andreas.hocevar at gmail.com] On Behalf
Of Andreas Hocevar
Sent: Friday, 8 July 2011 5:15 PM
To: brad
Cc: users at geoext.org
Subject: Re: [Users] GeoExt.tree problem

Hi,

there is no way to get this loading throbber with just GeoExt. The
JSON tree loader in GeoExt has this throbber, spinning until the JSON
response is turned into layer nodes.

It is, however, possible to achieve this on the application level by
registering for the OpenLayers Map's loadstart and loadend events.

Andreas.

On Fri, Jul 8, 2011 at 7:50 AM, brad <brad at numaps.com.au> wrote:
> List,
>
>
>
> I have seen GeoExt apps that have a small animated gif spin on the layer
> nodes. I cannot see how to activate this. The examples also do not have
> spinning layer load wheels? Is there something i need to configure to get
> this load wheel operating.
>
>
>
> My nodes look like this:
>
>
>
> nodeType: "gx_layer",
>
>                 layer      : “layer 1”,
>
>                 text        : “my layer name”,
>
>                 isLeaf    : true,
>
>                 disabled : false
>
>
>
> Cheers,
>
>
>
> Brad....
>
> _______________________________________________
> Users mailing list
> Users at geoext.org
> http://www.geoext.org/cgi-bin/mailman/listinfo/users
>
>



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