<xforms:model> <xforms:instance id="customer-info-instance"> <Document xmlns="" approved="false" guid="" contract=""> <CustomerSelection appliance_type=""> <Appliance type="" name="" message="No selection"/> </CustomerSelection> </Document> </xforms:instance> <xforms:instance id="appliance-templates-instance"> <Appliances xmlns="" ordertype=""> <Appliance type="" name="" message="No selection"/> <Appliance type="toaster" name="Toaster" message="Yaaay, toast!"> <Slots/> <Voltage/> </Appliance> <Appliance type="french_press" name="French Press" message="Yaaay, coffee!"> <Capacity/> </Appliance> </Appliances> </xforms:instance> </xforms:model> </head> <body> <xforms:group ref="CustomerSelection"> <xforms:select1 ref="@appliance_type"> <xforms:label>Appliance Selection</xforms:label> <xforms:itemset nodeset="instance('appliance-templates-instance')/Appliance"> <xforms:label ref="@name"/> <xforms:value ref="@type"/> </xforms:itemset>  <xforms:delete ev:event="xforms-value-changed" nodeset="../Appliance" while="../Appliance"/> <xforms:message ev:event="xforms-value-changed" ref="."/> <xforms:message ev:event="xforms-value-changed" ref="instance('appliance-templates-instance')/Appliance[@type=.]/@message"/> <xforms:insert ev:event="xforms-value-changed" context=".." origin="instance('appliance-templates-instance')/Appliance[@type=.]"/> </xforms:select1> <xforms:switch ref="Appliance/@type"> <xforms:case id="toaster"> <xforms:input ref="Slots"><xforms:label>Number of Slots</xforms:label></xforms:input> <xforms:input ref="Voltage"><xforms:label>Voltage</xforms:label></xforms:input> </xforms:case> <xforms:case id="french_press"> <xforms:input ref="Capacity"><xforms:label>Capacity (oz)</xforms:label></xforms:input> </xforms:case> </xforms:switch> </xforms:group> <widget:xforms-instance-inspector xmlns:widget="http://orbeon.org/oxf/xml/widget"/> </body> </html>