Hi

I have created a sample application with build version 8.3.20083.1009. In this sample I have bound the UltraWebGrid to a table.
In the InitializeLayout Event I added the code for applying the grouping and the sorting. When you run the sample you see that it is working correctly and I do not get any errors.
If you expand the first row (hobby= football) you see that the sort is applied to the color column and then the country column.

I am attaching the sample for reference, i hope this helps.

Thanks!

Thanks for the confirmation.

My understanding is that the result your seeing is unexpected.  This may be something specific to your application or to its setup, or it may be an issue in the control itself.  Because of this, this will likely require more in-depth research than we can provide through the forums.

I am passing the information on this thread to Developer Support, so that we can create a support request on your behalf and continue research through a support case.

yes, this is my problem

The formatting applied to this post makes it difficult to be sure I'm reading the details correctly.  I'd like to confirm that I understand what you've written before I proceed.

If I understand correctly, you're able to tell the grid to sort by one column or the other, one at a time.  Trying to do both at the same time, however, is triggering a NullReferenceException ("Object reference not set to an instance of an object").

Is this accurate?