Hi Tao, thank you very much for your hint. It helped me to identify the problem and to implement a workaorund for it. Basically, it's just a matter of checking if the return value of the getState() function call is null or not. If it 's not null, then everything works as fine as it did before.
Thanks also to visigoth and Austin for their help. LonelyWolf -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-visualization-api/-/EslsnMcHQDMJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.
