[Paraview] Dynamically updating GUI list components

[Andy Heather]

Hi,

I'm updating a reader to ParaView 3.1, and having difficulties getting
the GUI list components to update when new data sets are loaded - i.e.
they remain fixed after the first instance they are populated, instead
of growing/shrinking/changing array name entries etc. The list
components are described by StringVectorProperty entries in the server
manager XML, where each list entry contains a label and a check box, e.g.


        <StringVectorProperty
            name="RegionArrayInfo"
            information_only="1"
            label="Region Arrays">
            <ArraySelectionInformationHelper attribute_name="Region"/>
        </StringVectorProperty>
        <StringVectorProperty
            name="RegionStatus"
            command="SetRegionArrayStatus"
            number_of_elements="0"
            repeat_command="1"
            number_of_elements_per_command="2"
            element_types="2 0"
            information_property="RegionArrayInfo">
            <ArraySelectionDomain name="array_list">
                <RequiredProperties>
                    <Property name="RegionArrayInfo"
                        function="ArrayList"/>
                </RequiredProperties>
            </ArraySelectionDomain>
        </StringVectorProperty>

The 'SetRegionArrayStatus' command simply enables/disables an array. The
properties shown by the list are linked to a vtkDataArraySelection
object. I can add/remove arrays from the object in the C++ code, but the
changes are not shown by the GUI elements... Does anyone have a working
example of using the XML StringVectorProperty component so that it
automatically updates itself based on the current status of the
vtkDataArraySelection object?

Many thanks,

Andy