I'm using UltraWebGrid on my web page. I've implemented my grid using LoadOnDemand set to XML. Paging is working fine for me but whlie sorting I get the following error when I call DataBind from InitializeDataSource.
[NullReferenceException: Object reference not set to an instance of an object.] Infragistics.WebUI.UltraWebGrid.RowsCollection.Sort(Boolean caseSensitive) +820 Infragistics.WebUI.UltraWebGrid.UltraWebGrid.SortGroupRows(RowsCollection rows) +150 Infragistics.WebUI.UltraWebGrid.UltraWebGrid.PerformGroupRows() +213 Infragistics.WebUI.UltraWebGrid.DBBinding.BindList(IEnumerable datasource) +1984 Infragistics.WebUI.UltraWebGrid.DBBinding.DataBind(Object dataSource, String dataMember) +1265 Infragistics.WebUI.UltraWebGrid.UltraWebGrid.DataBind() +855
Any help even a link to some knowledgebase article will be much helpfull. Quick response will be much appreciated.
On Button click I am creating the columns at runtime. Then setting the datasource and binding the data . First time it works fine. But when I click on button second time it gives below error :
at Infragistics.WebUI.UltraWebGrid.UltraGridColumn.get_SortingAlgorithmResolved() at Infragistics.WebUI.UltraWebGrid.RowsCollection.Sort(Boolean caseSensitive) at Infragistics.WebUI.UltraWebGrid.UltraWebGrid.SortGroupRows(RowsCollection rows) at Infragistics.WebUI.UltraWebGrid.UltraWebGrid.PerformGroupRows() at Infragistics.WebUI.UltraWebGrid.DBBinding.BindList(IEnumerable datasource) at Infragistics.WebUI.UltraWebGrid.DBBinding.DataBind(Object dataSource, String dataMember) at Infragistics.WebUI.UltraWebGrid.UltraWebGrid.DataBind()
Please suggest solution for this.
Hello,
There is a dedicated area in the public forums now that announced hotfixes:
http://forums.infragistics.com/forums/247.aspx
Latest hotfix was relased on Jan, 23rd, list of changes is available in the hotfix package. You can also always contact Developer Support direclty via the following link
http://www.infragistics.com/Support/#Overview
and request more information on a specific bug.
Hi Tony,
we have the same problem and can not use your work arounds. Is there a hotfix available for 2008.3? Where can I find bug number 11228?
Thanks
Christoph
I think I ran into this same bug recently - bug number 11228. I was binding to a datareader on each postback, and didn't have any columns defined in the ASPX. There was a fix made to prevent the NRE from firing, but here were the development recommendations:
Hope this helps,
-Tony
Guys,
Did anything happen with this bug? I'm having the same with AutoGenerateColumns but am unable to add them manually!