[Solved] Rebind: Cannot perform this operation when DataSource is not assigned

[Matthew]

Basically I can't refresh my RadGrid. I have filters above the RadGrid that I apply when the user hits the RadGrid's Refresh button. With or without Ajax, whether or not I intercept the ItemCommand event, whenever it finally calls Rebind it fails with this error: Cannot perform this operation when DataSource is not assigned. It is true the DataSource is null before the call. What's interesting is the NeedDataSource event fires off without a hitch, and when the exception gets back to me the DataSource is properly assigned. I haven't messed with ViewState, so I believe that should still be enabled (or rather inherited seems to be the default nowadays). What am I doing wrong?

Let me know if you'd like to see any of my code, but after staring at it for hours I'm convinced that it's something else I don't know.

Thanks.

[Princy]

Hi,

It's hard to identify what is causing this issue,can you please provide your full code,to find out about this issue.

Thanks,
Princy

[Matthew]

Figured out the issue. A RadListView inside the NestedViewTemplate was failing on its NeedDataSource event. That was showing up at the call to my RadGrid's Rebind, thus the confusion. Sorry!