PATRICIA SEIFERT
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PATRICIA SEIFERT
asked on 26 Aug 2011, 01:56 PM
I have a RadGrid in UpdatePanel1 and a Listbox and a Button in Updatepanel2.
The button in UpdatePanel2 adds items to the listbox.
What I'm not understanding is why when I click the button in Updatepanel2 it runs the click event and then triggers the RadGrid.NeedDataSource sub routine.Shouldn't the the click event in Updatepanel2 only post back and refresh the controls in that updatepanel?
The button in UpdatePanel2 adds items to the listbox.
What I'm not understanding is why when I click the button in Updatepanel2 it runs the click event and then triggers the RadGrid.NeedDataSource sub routine.Shouldn't the the click event in Updatepanel2 only post back and refresh the controls in that updatepanel?
1 Answer, 1 is accepted
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Hello Patricia,
Note that even when you have AJAX on the page, the whole page lifecycle is executed, so if you have a call to Rebind() in PreRender for example, the grid would still fire its NeedDataSource event. Also, if its ViewState is turned off, NeedDataSource will fire on each execution of the page lifecycle.
Greetings,
Tsvetina
the Telerik team
Note that even when you have AJAX on the page, the whole page lifecycle is executed, so if you have a call to Rebind() in PreRender for example, the grid would still fire its NeedDataSource event. Also, if its ViewState is turned off, NeedDataSource will fire on each execution of the page lifecycle.
Greetings,
Tsvetina
the Telerik team
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