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!
Mike P is already looking into that thread and he will continue to assist you.
Hello Alan,
Please see the post created by me.
http://ko.infragistics.com/community/forums/t/104554.aspx
Abhijeet,
This scenario doesn't seem to match the issue raised in this thread and you should start a new thread with more details that include the following:
This information will help to understand what you are asking.
We are not adding bands, we are binding datasource on demand to child bands. And on page load we are attaching view state data to WHDG.
The suggestion that Maya made was to check if the band was already added before adding it in the sample that Cody provided. In this sample he was doing this in the BindGrid method. If you are doing something similar the check would need to be before you dynamically add a band to your grid.