Simply copy/pasting the stack trace may provide additional clues. Other than that, you can try ViewState management and switch viewstate persistance to one of four possible locations:

• Session
• Application
• AppGlobals
• Cache

As demonstrated in the following forum threads:

http://www.codeproject.com/KB/cs/C__ViewState_Management.aspx 

http://www.eggheadcafe.com/articles/20040613.asp 

This may alleviate the problem or provide additional clues.

I am currently having this issue. I have a grid that is loaded based on a menu selection. I select a particular menu item, the grid loads and also another grid loads for searching purposes. I have a column that is text and when I place a '(' in the cell and tab, the error comes up. But it is only this particular menu item. There really is no stack trace in the error message. Could someone please help me?

I believe that it will be very hard to figure this out here without any error or reproduction information. On the other hand, it is good that you have a website where you can reproduce that, so in this case I believe the best approach would be to contact our Developer Suport guys, sending them a small subset of your project reproducing the issue - this they will have a repro and will surely be able to provide additional clues.

You can contact Developer Support via this link: 

http://ko.infragistics.com/gethelp/default.asp

Currently i m working as developer. i am new to infragisitcs Ultraweb grid tool. 

facing some techinical issue in ultraweb grid. i have 100,000 records in the database. if i load the all the records from the server. it cause time out error. i planning to show only 20 records record per pages but the paging should be 100,000. for ex 100,000/20 = 5000. i want to get the records when i select the paging controls in ultraweb grid. 

Is there any possiable to customize the ultrawebgrid control as per my request.

Reg

Ramesh P.