Datacombobox behavior with null value

[rahashii]

I have several datacomboboxes bound to a dynamic data source. The value of the datacombobox and the corresponding text do correspond properly with the underlying dataset. When the dataset is updated, the correct values are displayed as expected.

There is one exception that I've not found a reasonable workaround for. If the value of the corresponding data node is null or does not match a value in the itemdatapath, the displayed text does not change, giving the appearance of a selected value, when the value of the datacombobox is actually null. The expected result would be for the datacombobox to display no text when there is no matching value in the itemdatapath.

Has anyone come across a reasonable workaround for this behavior?

Thanks.