Hi,
you may want to ask this on Sencha's Ext forum. But I am not aware of a way to
reconfigure a combo box to use a different store. With a grid, however, this
would be possible - there is a method called reconfigure.
Regards,
Andreas.
On Sep 13, 2010, at 15:33 , Evans, Barry wrote:
> 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,SomethingElse1,SomethingElse2]
>
>
> 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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--
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.
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