Here how to work with this...

HCL Notes/Domino 8.5 Forum (includes Notes Traveler)

Subject:

With 'No Data Validation' set your effectively turning the action into a cancel action and you can no longer submit data.
When you want to use no data validation and change combo boxes dynamically we go to use the submitted values rather than the values already there in the data as these get disregarded when a cancel action happens. So we might use something like the following...

<xp:this.data>
<xp:dominoDocument var="document1" formName="formSelectCity"></xp:dominoDocument>
</xp:this.data>
<xp:table>
<xp:tr>
<xp:td valign="top" id="docCell1">
<xp:button value="Submit" id="button2">
<xp:eventHandler event="onclick" submit="true"
refreshMode="complete" immediate="false" save="true">
</xp:eventHandler>
</xp:button>
<xp:button value="Cancel" id="button3">
<xp:eventHandler event="onclick" submit="true"
refreshMode="complete" immediate="true" save="false">
</xp:eventHandler>
</xp:button>
<xp:button value="Edit" id="button4"
rendered="#{javascript:!document1.isEditable()}">
<xp:eventHandler event="onclick" submit="true"
refreshMode="complete">
<xp:this.action>
<xp:changeDocumentMode mode="edit"></xp:changeDocumentMode>
</xp:this.action>
</xp:eventHandler>
</xp:button>
<xp:br></xp:br>
<xp:text escape="true" id="computedField1" value="#{javascript:@Unique()}"
style="color:rgb(0,128,0);font-weight:bold"></xp:text>
<xp:br></xp:br>
<xp:label id="label1" value="Subject: "></xp:label>
<xp:inputText id="inputText1" value="#{document1.Subject}"
required="true" style="width:200px">
</xp:inputText>
<xp:table id="refreshtable">
<xp:tr>
<xp:td>
<xp:label value="Select a Country: " id="label2">
</xp:label>
</xp:td>
<xp:td>
<xp:comboBox id="comboBox1" value="#{document1.selectCountry}">
<xp:selectItem itemValue="" itemLabel="Please select">
</xp:selectItem>
<xp:eventHandler event="onchange" submit="true"
refreshMode="partial" refreshId="refreshComboBox" immediate="true">
</xp:eventHandler>
<xp:selectItems>
<xp:this.value><![CDATA[${javascript:@Unique(@DbColumn(@DbName(),"viewList",1))}]]></xp:this.value>
</xp:selectItems>
</xp:comboBox>
</xp:td>
</xp:tr>
<xp:tr id="refreshRow">
<xp:td valign="top">
<xp:label value="Select a City: " id="label3">
</xp:label>
<xp:br></xp:br>
<xp:text escape="true" id="computedField2" value="#{javascript:@Unique()}"
style="color:rgb(0,64,0);font-weight:bold">
</xp:text>
<xp:br></xp:br>
<xp:text escape="true" id="computedField3" style="color:rgb(64,128,128)">
<xp:this.value><![CDATA[#{javascript:document1.getItemValueString("selectCountry")}]]></xp:this.value>
</xp:text>
</xp:td>
<xp:td valign="top">
<xp:comboBox id="refreshComboBox" value="#{document1.selectCity}">
<xp:selectItems>
<xp:this.value><![CDATA[#{javascript:var ctry = document1.getItemValueString("selectCountry");
var lst1 = @DbLookup(@DbName(),"viewList","ctry",2);
//@Explode(lst1,",")
var combo1 = getComponent('comboBox1');
// value submitted from the browser
var value = combo1.getSubmittedValue();

if( null == value ){
// else not yet submitted
value = combo1.getValue();
}

return @DbLookup(@DbName(),"viewList",value,2)

}]]>
</xp:this.value>
</xp:selectItems>
</xp:comboBox>
</xp:td>
</xp:tr>
</xp:table>
</xp:td>
</xp:tr>
</xp:table>

Hope this helps.

Feedback response number PHAN7QWE82 created by ~George Fronusteretsi on 04/08/2009