Forum Discussion
Ofer,
If you don't change anything else, and if the error still occurs, I'd suggest that you explore your application. As far as I can see, you are checking the value of the zIsContentVisible_k__BackingField property. Perhaps, this property no longer exists, or its data type is not boolean.
* Launch your application.
* Switch to the Object Browser panel.
* Find the tested object there and check if it contains the zIsContentVisible_k__BackingField property (or field).
* If the property exists, check its value. Perhaps, in the Object Browser, its value is not true or false, but (Object). In this case, click the ellipsis button and see if this object contains the OleValue property (or something like this). If it does, you should use the zIsContentVisible_k__BackingField.OleValue property for comparison.