Hello,

I also have perhaps similar issue on UltraWebGrid for Infragistics4.

I read posts on Infragistics that IE9 is supported on controls like UltraWebGrid if we upgrade to NetAdvantage for ASP.NET 2011 Vol. 1 because after that NetAdvantage for ASP.NET 2011 Vol. 2 have newer controls like WebDataGrid but not UltraWebGrid.

I upgraded my controls to use NetAdvantage for ASP.NET 2011 Vol. 1 and I am using ASP.NET CLR4 controls.

Now my application is using new controls for NetAdvantage for ASP.NET 2011 Vol. 1 but I am getting javascript error in ig_WebGrid_dom.js line 175.
filterPanel = this._filterPanels[this.ServerPassedFilters[itr]] = new igtbl_FilterDropDown(filteredColumn);

This error is on IE9, the application is running OK on IE8 with these new controls,few grid alignments and headertext font has changed but not this type of error.

We have to use this version (NetAdvantage for ASP.NET 2011 Vol. 1) because we do not want to replace existing classic controls like UltraWebGrid to some other Grid (ex. WebDataGrid in NetAdvantage for ASP.NET 2011 Vol. 2) as that would be like entire application rewriting.
Let me know If I am missing anything, all Infragistics DLLs have version as 11.1.20111.2178 for NetAdvantage for ASP.NET 2011 Vol. 1

Please let me know how can I resolve the issue.

Best Regards,
Anurag Saxena

Hello Maggie,

I am following up to see if the information provided has resolved this matter.

Please let me know if I may be of further assistance with this matter.

Hello Maggie,

I have saved out the html for the page of the sample I have sent you. Have you been able to update to the latest service release? If so has that resolved this issue for you?

Please let me know if I may be of further assistance with this matter.