I have a WebTab and when I added 'EnableLoadOnDemand' property I get this error:
"Unable to get value of the property 'PageRequestManager': object is null or undefined"
Anyone have an idea?
PS: I've attached the my aspx file
Hello lcarneiro,
I am glad to hear that you have resolved this issue and thanks for the feedback
For any further questions with this matter, do not hesitate to contact me.
Sincerely,
Georgi Sashev
Developer Support Engineer
Infragistics, Inc.
http://ko.infragistics.com/support
Thanks gsashev,
I saw your code and after a long day I discovered that the problem was in web.config file, I had this tag <xhtmlConformance mode="Legacy"/> and after I removed it then EnableLoadOnDemand was working in my WebTab.
Thanks again for your attention.
Thank you for posting this question in our community.
I reviewed you sample code and it looks ok.
I suppose that the reason for this issue that you experience is in the user control that you placed in the tabs.
I have created a sample on your behalf implementing this scenario. I replaced the “<mtds:ucEditarDados ID="oEditarDados" runat="server"></mtds:ucEditarDados>”
with our WebDataGrid and everything seems to behaves as expected no errors were experienced. Can you download the sample and review it. Also I can recommend you to review this online sample in our site:
http://samples.infragistics.com/aspnet/Samples/WebTab/Performance/LoadOnDemand/Default.aspx?cn=tab&sid=c29b595c-e834-4949-a165-a583eb9d919c
this should be helpful too.
If still have further questions with this matter,
do not hesitate to contact me. Note that providing
a sample site will help to investigate this further.
I hope this helps.