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,
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.
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.
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.