Hi,
Any luck if you try the following?
createNode: function(attr) {
attr.icon =
"http://localhost/WebServices/Request.aspx?request=GetLegendGraphic&version=1.1.1&format=image/png&style=&layer="+attr.text
//alert(attr.icon);
*return new Ext.tree.TreePanel.nodeTypes[attr.nodeType](attr);*
//return GeoExt.tree.LayerParamLoader.prototype.createNode.apply(this,
arguments);
}
On 24/11/2010 17:02, Andrew Stewart wrote:
Hi Andreas for your suggestion. I am still having some difficulties with the
parameters for this.. Except when I issue the same request in my browser I am
getting the correct legend graphic returned but when I run it through the code
I am getting nothing showing up.
I modified my code to this -
//Labels layerlist
layerList_Labels = new GeoExt.tree.LayerNode({
"layer": layer_Labels,
"isLeaf": true,
"checked": false,
"enableDD": true,
"cls": "rootnode",
"singleClickExpand": true,
"listeners":
{
'checkchange' : function(node, checked)
{
// If a parent node is unchecked, uncheck all the children
if (node.getUI().isChecked()) {
node.expand();
}
if (!node.getUI().isChecked())
{
node.collapse();
}
}
},
loader: {
param: "LAYERS",
createNode: function(attr) {
attr.icon =
"http://localhost/WebServices/Request.aspx?request=GetLegendGraphic&version=1.1.1&format=image/png&style=&layer="+attr.text
alert(attr.icon);
return GeoExt.tree.LayerParamLoader.prototype.createNode.apply(this,
arguments);
}
}
});
And nothing shows up.. However if I copy the url of attr.icon and paste this in
my browser I do see the correct legend graphic for the legend entry. Should I
change this around because my childnodes are not expanded first on initial
load? I have also tried to add the style= and it didn't seem to have any affect
or make it stop working either. Thanks again for the help.
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