How to disable the back navigation model train adf

Hello I'm developing a web application tutorial review in which users can take the test, using oracle adf (jdeve11.1.2.4). I have developed a model train that looks like below.

train1.png

In the picture above inititally user's question 1. Here, he chooses an option then accesses the next train. Value of af: SelectOneRadio will be submitted when it navigates to the next chosen train. This is the default behavior of the model train if am not wrong. Never mind.

When the user come to back issue 1 the af:SelectOneRadio group is empty because the selected value has already submitted. I have to overcome form this problem. When the user comes back it should be able to see previously selected value. How do I get this declaratively.

If this is not possible declarative, I have two ideas

1. when the user come back I don't know what value it previously chosen (as am save this value in a managed bean). So, I have to select by program choice.

2 user should not be able to navigate back. (This is not a good choice)

Please help me. How to achieve them. Thank you very much.

Sorry for the grammatical errors as appropriate.

Let me put stronger t then, Ruben's. The selectOneRadio stores its value somewhere. When you enter the train, the value is empty and the user does not see a selection. Once he selects a radio selection can be stored in the storage specified by the value property. While this value exists (link or bean), you can navigate back and see the selection. If this is not the case, there is something wrong, for example, you store the value into an object that does not live long enough (scope of application).

Timo

Tags: Java

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