Problem with branching on dependant list submit

Question

I am a new APEX user using version 3.1. I've successfully set up a dependent LOV on a form but the logic I've applied is preventing me creating any records. (I've branched back to the page and I think this is conflicting with my primary key trigger.) I've spent a couple of days trying to solve this - can anyone help please?
THE BIT THAT WORKS
My driving LOV has been set up as a select list with submit and returns the values that I intended.
I have amended the Source used on the first LOV to : Only when the value in session state is null (so that this selection is displayed when I return to the page)
I have set up a branch back to this page before processing so that I can continue with the rest of the form input.
Both select list works but when I try to create a record the form does clear (apart from the select lists) but no record is created.
For info, the create button worked just fine until I added the branch back to the page.
I think this may be conflicting with how I've set up my primary key? I've used a trigger for this as follows:
CREATE OR REPLACE TRIGGER "BI_HEADER"
before insert on "HEADER"
for each row
begin
select "HEADER_SEQ".nextval into :NEW.HID from dual;
end;
Any help would be really appreciated.

Answer 1

Many thanks for the quick answer. Worked great.
The key was to create the bindings for each input field:
private RichInputText richInputTextName;
private RichInputText richInputTextPhone;
Reference them in the jsp page:
<af:inputText label="Name:" binding="#{testBackingBean.richInputTextName}"
value="#{testBackingBean.currentRowData.name}"
id="it2"/>
<af:inputText label="Phone:" binding="#{testBackingBean.richInputTextPhone}"
value="#{testBackingBean.currentRowData.phone}"
id="it1"/>
Then in the change value listener that is called when you select another state, you must manually set the before and after data. Before data would be the data the user changed, the after data would be resetting correct data of the other state to the corresponding mapped state input data.
public void selectStateChanged(ValueChangeEvent event) {
if (event.getNewValue() == null) {
setSelectedItemState("VA");
} else {
// before
String beforeName = (String) richInputTextName.getValue();
String beforePhone = (String) richInputTextPhone.getValue();
currentRowData.setName(beforeName);
currentRowData.setPhone(beforePhone);
setSelectedItemState((String)event.getNewValue());
// after
currentRowData = someRowDataList.get(getSelectedItemState());
String afterName = (String) currentRowData.getName();
String afterPhone = (String) currentRowData.getPhone();
richInputTextName.setValue(afterName);
richInputTextPhone.setValue(afterPhone);
Again, you saved the day!