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Expander icons disappear after expanding more than one child
posted

Hello,

I'm having trouble with disappearing expander icons in my WHDG. I've attached a working sample based on other examples I've compiled from reading the forums. I have a multi-level hierarchy, each level is created by taking the key from the parent and using it to create a new dataset for the child. The expanders appear fine on the parent and on the expanded child. However, if I expand another child (without collapsing the previously expanded child) the expander icons vanish on the previously expanded row preventing the user from drilling down any further.

Maybe related, when I enable Ajax, I get a "Async request failed. Failed to load viewstate..." error. I think the problem I'm facing has something to do with postback but I can't figure it out.

I've attached a working sample as well as some screenshots of the problem.

Any help would be most appreciated. Thanks!

Disappearing Expanders.zip
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