OnNeedDataSource firing twice

[Chris]

I'm just starting to demo the RadGrid and decided to copy the example from:-
http://demos.telerik.com/aspnet-ajax/grid/examples/programming/slider/defaultcs.aspx

I pasted in the sample code from the DefaultCS.aspx and DefaultVB.aspx.vb sections.  I did some slight modifications so I was calling data from our own database and ran the project.  I noticed in SQL Server profiler that my query was being called twice everytime I used the page slider.  After looking at the sample code that I pasted in I noticed that if I remove:-

OnNeedDataSource="RadGrid1_NeedDataSource"

... from the HTML (DefaultCS.aspx) if only fires once.  Everything still seems to work fine still.  Is this a mistake in your sample and is it not required or have I maybe done something wrong when I cut and pasted the sample code into our application?  I am just checking that removing this from the HTML will not have any implications.

Thanks

[Georgi Krustev]

Hello Chris,

The described behavior is not mistake caused of the implementation of the example. To get correctly working demo you need to copy mark-up code from the DefaultVB.aspx, and not from the DefaultCS.aspx.

The NeedDataSource event is fired twice in the VB.NET, because the grid is attached twice to this event. Hence you do not need to wire the event in the mark-up code.

Please examine once again the online demo (please choose DefaultVB.aspx page from the drop down menu in the example), which you point in your previous post.

Kind regards,
Georgi Krustev
the Telerik team

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[Chris]

Thanks Georgi, I'll remove the OnNeedDataSource="RadGrid1_NeedDataSource" from the DefaultCS.aspx so I'm only wiring it up once.

Chris