Setting a selectedItem by parameter

Question

I'm trying to set the selectedItem in two different combos included in a custom component. I have a Java class which send the parameters to the zul through a map of args (Map<String,Object>).

In this map I send 2 ListModelList and 2 Objects (ListModelList<Object1> list1, ListModelList<Object2> list2, Object1 o1, Object2 o2). The lists are supposed to populate the combos and the objects select the item.

1. If I try to select the item by using the selectedItem = ${arg.o1} I got a conversion error, something like:

can't convert Object ... into Comboitem

2. If I try to make a Comboitem setting his value with the object I want to select, I got the error:

Not a child: <Comboitem null>

3. If I try to select the item by his index using "selectedIndex = ${arg.index1}" (assuming index1 is the position of the object in his list), it return an out of bounds error.

4. If I try to select the item by onAfterRender="self.setSelectedIndex(${arg.index1})" I got the error:

Cause: Sourced file: inline evaluation of: self.setSelectedIndex(${arg.index1});

Attempt to access property on undefined variable or class name

If I use the ${arg.index1} as value of a label it returns the expected value.

Answer 1

Your problem is that you put a ListModelList into the combobox and selections goes on ComboItem.
Selection of an item is now done through your model.

The solution is actually simple :

list1.setSelection(Arrays.asList(o1));
map.put("list1",list1);
list2.setSelection(Arrays.asList(o2));
map.put("list2",list2);

And send the map then.
If the list is correctly loaded into your listbox the selection will be correct.

Note : Custom components can have a controller to ;)