AJAX :: UpdatePanel On Update Fires _PageLoad Twice?

Nov 20, 2010

I have two updatepanel in a page which use a master page. the two updatepanels update mode is conditional

1st updatepanel update mode = conditional and childreenAstrriger = false

2nd updatepanel update mode = conditional

When i click any element in the fist updatepanel it update the second update panel with .Update() method.

When i click second update panel only second one will update (its ok).

All Works fine when i run from server as i excepted.

But when i run from visual studio(8) the first update panel works normally, but when i clicked any element in the second update panel, I put a break point in _PageLoad(), i notified that _PageLoad() events fire twice. First time it is as NotIsPostBack and in the second time as IsPostBack (what i excepted is single _PageLoad() events fires and is IsPostBack but this was not what when i run from VS(8) but from server all things ok) (i have a grid in second update panel and it have preRender event also with RowCommand , updating...etc.)

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