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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