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EUREKA!!

The issue is not with the listbox populating itself, but instead with the layout it is held withing. This has been added to the ZK Bug Tracker: ZK-1604

For those of you that manage to stumble onto the same issue I did, Here is the cause:

This error is due to the following pattern of containers/objects. [code]

<borderlayout>

[/code] The initial load does not cause any problems. But once the data is refreshed, a window appears on the UI with the above error.

If the columnlayout is removed as so: [code] <borderlayout>

EUREKA!!

The issue is not with the listbox populating itself, but instead with the layout it is held withing. This has been added to the ZK Bug Tracker: ZK-1604

For those of you that manage to stumble onto the same issue I did, Here is the cause:

This error is due to the following pattern of containers/objects. [code]

<borderlayout>
    
 <center>
        <columnlayout>
            <columnchildren>
                <listbox model="@load(vm.dataset)">
                    ....
                </listbox>
            </columnchildren>
        </columnlayout>
    
</borderlayout>
</center>
</borderlayout>

<borderlayout>
    
 <center>
        <listbox model="@load(vm.dataset)">
            ....
        </listbox>
     </center>
</borderlayout>