Cannot reset bean properties bound to UIX elements

Question

In a UIX page there are a messageChoice and two messageTextInput that are boud to three bean properties. Here is the code:
<messageChoice model="${bindings.farmaco}"
selectedValue="${bindings.farmaco}"
prompt="Tipo di scheda (farmaco):">
<contents>
<option value="-1"/>
<dataScope>
<contents childData="${bindings.farmaco.displayData}">
<option model="${uix.current}"/>
</contents>
</dataScope>
</contents>
</messageChoice>
<messageTextInput model="${bindings.anno}"
prompt="Anno di compilazione"/>
<messageTextInput model="${bindings.reparto}"
text="${bindings.reparto}"
prompt="Unità operativa:"/>
<submitButton text="Cerca" event="cerca"/>
<resetButton text="Reset">
<primaryClientAction>
<fireAction event="reset"/>
</primaryClientAction>
</resetButton>
the onReset method resets the bean properties:
vars bean=(vars)actionContext.getBindingContext().findDataControl("varsDataControl").getDataProvider();
//reset search criteria
bean.setFarmaco(null);
bean.setAnno(null);
bean.setReparto(null);
But somewhere else the value of these bean properties is set again to the value of the UIX page components. I want just the opposite to happen: when I reset the bean properties, I expect to see (the event causes a refresh) the UIX component reset too.
Why does this not happen?

Answer 1

I chaneged the code inside UIX page to accomplish what you wrote:
<messageChoice
prompt="Tipo di scheda (farmaco):"> <contents>
<option value="-1"/>
<dataScope>
<contents childData="${bindings.farmaco.displayData}">
<option model="${uix.current}"/>
</contents>
</dataScope>
</contents>
</messageChoice>
<messageTextInput
text="${bindings.anno}"
prompt="Anno di compilazione"/> <messageTextInput text="${bindings.reparto}" prompt="Unità operativa:"/>
<resetButton text="Reset">
</resetButton>
I also deleted the code for the "onReset" method, but the reset doesn't work. Before the changes, I added some prints to setter and getter methods of the bean properties: during the reset they are set to null, but then they are set again to the previous value before loading the page and I cannot understand where it happens. Any ideas?