You probably have to rethink your json structure - it doesn't look
like you're interested
in getting values from keys... you just want the values in the particular order.
Take a look at JSONArray
On Thu, May 15, 2008 at 2:19 PM, Leon Derks <[EMAIL PROTECTED]> wrote:
> Hi Chris,
>
> I just noticed that the options in the select are initialy not ordered.
> But when I persist the options (groups) in my session data, the option are
> ordered after I have clicked the search button and submitted the form.
> Then refreshed page, contains a select with ordered group options.
>
> Do you have an explanation for this behaviour?
>
> Leon
>
>
>
>
> Leon Derks wrote:
>
> > Thanks Chris,
> >
> > That worked.
> > The only thing is that the order of groups in the select is gone.
> > I know for sure I put them in the correct order in the java jsonObject.
> > I think the var jsonObject = response.evalJSON(); or the for(var key in
> jsonObject) messes up the order.
> > Is there a way to solve this?
> >
> > For the ones interested, I fill my select box now in this way:
> >
> > Java Page:
> > @OnEvent(component = "productSelect", value = "change")
> > JSONObject onProductSelectChanged(String value) {
> > ProductCategory category =
> ProductCategory.getProductCategoryByName(value);
> > groups = characteristicDAO.findGroupsByProductCategory(category);
> > JSONObject jsonObject = new JSONObject();
> > for (CharacteristicGroup group : groups) {
> > Long id = group.getId();
> > jsonObject.put(id.toString(), group.getName());
> > }
> > return jsonObject;
> > }
> >
> > javascript:
> > function productSelectChanged(response) {
> > var groupSelect = $('groupSelect');
> > clearSelectOption(groupSelect);
> > var jsonObject = response.evalJSON();
> > for(var key in jsonObject) {
> > addSelectOption(groupSelect, jsonObject[key], key, false);
> > }
> > }
> >
> > Chris Lewis wrote:
> >
> > > Try:
> > >
> > > for (var i in object) {}
> > >
> > > Where object would be your json object.
> > >
> > > Leon Derks wrote:
> > >
> > >
> > > > Hi Sven,
> > > >
> > > > I only see that they get the value by using the key name.
> > > > For example this:
> > > >
> > > > |var data = '{ "name": "Violet", "occupation": "character"
> }'.evalJSON();
> > > > data.name; //prints Violet.
> > > > |
> > > >
> > > > But in my case, I don't know the key name, so I can't get the value.
> > > > Is there a way to get the key names of a JSON Object?
> > > > For example something like this:
> > > > |
> > > > data.keys; //returns {name, occupation}|
> > > >
> > > > |
> > > > |
> > > >
> > > > Leon
> > > >
> > > >
> > > > Sven Homburg wrote:
> > > >
> > > >
> > > > > http://www.prototypejs.org/learn/json
> > > > >
> > > > > 2008/5/15 Leon Derks <[EMAIL PROTECTED]>:
> > > > >
> > > > >
> > > > >
> > > > > > Hello
> > > > > >
> > > > > > I have a JSON object like this:
> > > > > >
> > > > > > JSONObject obj = new JSONObject();
> > > > > >
> > > > > > obj.put(entity.getId(), entity.getName());
> > > > > >
> > > > > > But how can I get the value from my json object in javascript, if
> I
> > > > > > don't
> > > > > > know the key name?
> > > > > >
> > > > > > Is there a way to get the key name(s) from a json object in
> javascript?
> > > > > >
> > > > > > Leon
> > > > > >
> > > > > >
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--
Andreas Andreou - [EMAIL PROTECTED] - http://blog.andyhot.gr
Tapestry / Tacos developer
Open Source / JEE Consulting
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