Hi Rumen.
I have this problem.
I have a Ultrawebgrid using XMLLOADONDEMAND and I made a groupo by any column.
After you select any row.
If you raise a postback and try to select the selected rows, the rows cannot was the you taht select before.
Question: the selected rows in the server side using group by cannot works?
Thanks
roydenf,
What's the value of your grid's DisplayLayout.XmlLoadOnDemandType property?
If it's anything other than "Accumulative" then this result is likely expected. The grid does not keep track of rows that were previously loaded when its AJAX functionality is enabled (DisplayLayout.LoadOnDemand = XML) except when the XmlLoadOnDemandType property is set to "Accumulative".