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TreeGrid state save

How I can store the whole TreeGrid state (JSON) before the Submit. Is thought whether a node is opened or is closed, the values by cells, userdate and gifs for example. And how can I restore the TreeGrid afterwards?

Thanks in advance and best regards


Rolf

Current version of TreeGrid doesn't support serialization to JSON format, it can be serialized to XML only. 

I used the serialize() function. But the xml stream seams not valide. See the attached file.

Best regards

Rolf

Fix for reported issue sent by email.