Hi there I was wondering if someone could give me some advice on a problem I am
having populating a combobox in GeoExt.
First of all I have feature attribute store of my data given by the following
code called in when the page initialises:
layer_attribute_store = new GeoExt.data.AttributeStore({
url:
"http://localhost:8080/geoserver/wfs?service=wfs&version=1.1.0&request=DescribeFeatureType&typeName=cite:USA";
});
layer_attribute_store.load();
This store is then loaded into a combobox defined below:
var themeCriteria = new Ext.form.ComboBox({
fieldLabel: 'Criteria',
width: 130,
id: 'criteriaId',
name: 'criteria',
hiddenName: 'criteria',
forceSelection:true,
editable:false,
triggerAction: 'all',
mode: 'local',
store: layer_attribute_store,
valueField: 'name',
emptyText: "Name",
triggerAction: "all",
displayField: "name"
});
The combobox is then placed in a panel within a Viewport using normal apporach
and placing in "items" catagory:
items: [themeCriteria]
This all works fine and it displays the attributes within the layer. Later
however I want the use to be able to click on a radio button to change the
layer name and subsequently update the combobox with the new layer attributes.
Now I can get the layer name to change using the listner method in the
layertree as shown in the examples and I can update the layer_attribute_store
using the following:
layer_attribute_store = new GeoExt.data.AttributeStore({
url:
"http://localhost:8080/geoserver/wfs?service=wfs&version=1.1.0&request=DescribeFeatureType&typeName=";
+ node.layer.name
});
layer_attribute_store.load();
For the life of me, however, I cannot get this new store to render into the
combobox that is already created? I'm guessing there should be a simple piece
of code that would just refresh the contents of the combobox accordingly but
I've been searching online and trying different ways now for 2 weeks and still
at a loss to a solution. If anyone has any ideas how to solve this it would be
a great help.
Thank you.
Kind regards,
Barry
Email: [email protected]
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