xpages set a value to a field from a repeat field - xpages

Question

I'm trying to set a value to a field ( which is not inside the repeat control ) from a field which is on the repeat control.
The field from the repeat:
<xp:inputText id="inputText2" disabled="true">
<xp:this.value><![CDATA[#{viewScope.field_2[index]}]]></xp:this.value>
<xp:eventHandler event="onchange" submit="true"
refreshMode="partial" refreshId="sus">
<xp:this.action><![CDATA[#{javascript:getComponent("inputText4").setValue("1234");}]]></xp:this.action>
</xp:eventHandler>
</xp:inputText>
And the target field , as you can notice, is inside a panel, id="sus".
Also the target field is binded to a form field.
but no value is assigned. How can I achieve this?

Answer 1

Components are only visualizations of a data model behind. Always bind your controls and go after the model value, never the component. A disabled inputText can't fire a value and in the code snippet above you have disabled="true". The onchange event can't fire.
This would work:
<xp:inputText id="inputText2" disabled="false">
<xp:this.value><![CDATA[#{viewScope.field_2[index]}]]></xp:this.value>
<xp:eventHandler event="onchange" submit="true"
refreshMode="partial" refreshId="sus">
<xp:this.action><![CDATA[#{javascript:viewScope.someValue=42;}]]></xp:this.action>
</xp:eventHandler>
</xp:inputText>
Your target control would look like this:
<xp:inputText id="inputText4" value="#{viewScope.someValue}">
</xp:inputText>
If your target control is bound to something else (e.g. #{document1.test}), they your code needs to update that one. (document1.replaceItemValue("test",42))
Again 3 important aspects:
Never go after UI elements, always update the bound model behind (a.k.a: Talk to the data, not the UI also known as: The Controller updates the MODEL, not the view)
Make sure your target is part of the refreshed fields
Disabled fields don't fire events
Let us know how it goes