XPages Repeat control, compute visible - repeater

Question

I have global context document currentDoc and repeat control with responses of currentDoc.
In repeat control i have 2 fields:
1) ComboBox
2) Editbox, with computed Visible by ComboBox:
var temp = respDoc.getItemValueString( "Combobox1");
return temp == "a";
Onchange event ComboBox i update repeat control.
And i have button "Add response" (create/save response and update repeat control)
Its work. But.. if i create response and save this, field with computed Visible reset to "" and not saved. If i re-enter text to Editbox and re-saved, then Ok. Only works after re-saving. Have not errors.
May be you know, what problem?
Source code
<xp:this.data>
<xp:dominoDocument var="curDoc" formName="test"></xp:dominoDocument>
</xp:this.data>
<xp:repeat id="repeat1" rows="30" var="respDoc"
repeatControls="false"
indexVar="respDocIndex" value="#{javascript:return curDoc.getDocument().getResponses();}">
<xp:panel id="panel1">
<xp:table>
<xp:tr>
<xp:td style="width:150.0px">
<xp:comboBox id="comboBox1" style="width:95%"
value="#{respDoc.combobox}" required="false">
<xp:selectItem
itemLabel="Email" itemValue="a">
</xp:selectItem>
<xp:selectItem itemLabel="UserName"
itemValue="b">
</xp:selectItem>
<xp:eventHandler event="onchange"
submit="true" refreshMode="partial" refreshId="repeat1">
</xp:eventHandler>
</xp:comboBox>
</xp:td>
<xp:td>
<xp:inputText id="inputText2"
value="#{respDoc.editbox}" maxlength="20">
<xp:this.rendered><![CDATA[#{javascript://return true <---- if uncomment it, then all work
var temp = respDoc.getItemValueString( "combobox");
return temp == "b";}]]></xp:this.rendered>
</xp:inputText></xp:td>
<xp:td>
<xp:button value="Save" id="button4">
<xp:eventHandler event="onclick"
submit="true" refreshMode="partial" refreshId="repeat1">
<xp:this.action><![CDATA[#{javascript:respDoc.save();}]]></xp:this.action>
</xp:eventHandler></xp:button>
</xp:td>
</xp:tr>
</xp:table>
</xp:panel>
</xp:repeat>
<xp:button value="Add Response" id="button2">
<xp:eventHandler event="onclick" submit="true"
refreshMode="partial" refreshId="repeat1">
<xp:this.action><![CDATA[#{javascript:if(curDoc.isNewNote())
curDoc.save();
var doc:NotesDocument = database.createDocument();
doc.replaceItemValue("Form", "test");
doc.makeResponse(curDoc.getDocument());
doc.save();}]]></xp:this.action>
</xp:eventHandler>
</xp:button>

Answer 1

Your approach has a number of issue:
A server roundtrip is initiated on the change of a checkbox, which is an unexpected behavior for a form
A document that has not been saved can't have responses, so you shouldn't show the repeat
When you create a new document you don't assign the "combobox" item any value,so your test temp =="b" fails.
When no rendered, no value is send back to the server, that might not be what you want
I would use style="display : none" to hide the field on the client side and have the event only run on the client. also add a value to your combobox when creating a new document:
var doc:NotesDocument = database.createDocument();
doc.replaceItemValue("Form", "test");
doc.makeResponse(curDoc.getDocument());
doc.replaceItemValue("Combobox1","a");
doc.save();
doc.recyle();
Hope that helps